Ling wrote 3 compositions in 2 hours. She took the same amount of time to write the first 2 compositions but took 30 minutes longer to write the third composition than the first. How many minutes did she take to write the first composition? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

2 hours = 120 minutes. The first two compositions take the same time (call it t each); the third takes t + 30. So t + t + (t + 30) = 120, giving 3t + 30 = 120, 3t = 90, t = 30 minutes.


A bottle can hold 1050 ml of water. A cup can hold 900 ml less water than the bottle. How much water can the cup hold? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Find the difference between the smallest and greatest fractions.
\(\dfrac{3}{4}\), \(\dfrac{1}{2}\), \(\dfrac{7}{8}\)


Mother bought a pizza and sliced it into 12 equal pieces for a party. Iris took 3 pieces of the pizza. What fraction of the pizza did Iris take? Express your answer as a fraction in its simplest form.

Iris took 3 out of 12 pieces = 3/12. Simplify by dividing top and bottom by 3: 3/12 = 1/4.


There were 68 tables and 3 times as many chairs in a storeroom.
(a) How many chairs were there in the storeroom?
(b) How many tables and chairs were there altogether?
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> chairs, <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> altogether


Ben and Jerry bought some egg tarts from a bakery. Ben bought 6 more egg tarts and paid $12 more than Jerry. How many egg tarts did Jerry buy if he paid a total of $98? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

6 more egg tarts cost $12, so each egg tart costs $12 div 6 = $2. Jerry paid $98, so Jerry bought $98 div $2 = 49 egg tarts.


Jack and Ken have some toy cars. After Jack gives 20 toy cars to Ken, he has 23 toy cars more than Ken. How many more toy cars does Jack have than Ken at first? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Giving away 20 cars changes the gap by 2 x 20 = 40 (Jack loses 20, Ken gains 20). After giving, Jack leads by 23, so at first the lead was 23 + 40 = 63 more cars.


In 1579, reading from the right: 9 ones, 7 tens, 5 hundreds, 1 thousand. So the digit 5 is in the hundreds place.


Two thousand, one hundred and twelve written in numerals is .


Which of the following fraction is not equivalent to 1/2?

2/4, 3/6 and 6/12 all simplify to 1/2. 4/10 simplifies to 2/5, which is not 1/2.


Chloe takes 23 minutes to go home from school. She left school at 11.40 a.m. What time did Chloe get home?


What is the missing number in the number pattern? 1265 , 1280 , 1295 , , 1325

The numbers increase by 15 each time: 1295 + 15 = 1310. Check: 1310 + 15 = 1325.


The mass of a durian is 2 kg 250 g. The mass of a pear is 360 g. How much heavier is the mass of the durian than the mass of the pear?


Mary took 1 hour 25 minutes to complete his homework. George took 40 minutes faster than Mary to complete his homework. How long did George take to complete his homework?

1 h 25 min = 85 min. 85 min - 40 min = 45 min.


Dora had $49.90. Her mother gave her another $15. She spent $18.50. How much money had she left?


A fish tank contains 5 l 70 ml of water. 2190 ml more water is needed to fill up the fish tank. What is the capacity of the fish tank?


A pizza was cut into equal pieces. Fred ate 1/2 of it and Joy ate 1/3 of it. What fraction of the pizza was eaten?


The table shows the price of bus fares for different passengers. Adult $1.20; Senior citizen (above 60 years old) $0.90; Child (below 12 years old) $0.55. Mrs Tan took her two elderly parents out with her 10 year-old son. Her elderly parents were both 65 years old. What was the total bus fare for the four passengers?


Arrange the following numbers from the greatest to the smallest. 7216, 7261, 7126, 7162 <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />, <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />, <input type="text" id="input_2" class="fill-blank-input" placeholder="?" />, <input type="text" id="input_3" class="fill-blank-input" placeholder="?" />

Compare the tens and ones: 7261 > 7216 > 7162 > 7126.


What is the quotient when you divide 908 by 5? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

908 / 5 = 181 remainder 3. The quotient is 181.


3874 people visited Sentosa on Saturday. On Sunday, 1955 fewer people visited it than on Saturday. How many people visited Sentosa on Sunday? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Arrange the following fractions from the greatest to the smallest. 5/9, 5/6, 5/7 <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />, <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />, <input type="text" id="input_2" class="fill-blank-input" placeholder="?" />

Same numerator: the smaller the denominator, the larger the fraction. So 5/6 > 5/7 > 5/9.


Lynn started her computer lesson at 8.30 a.m. It ended at 12.15 p.m. How long was her computer lesson? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> h <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> min


Tara bought 270 pens. She bought three times as many pens as Ray. How many pens did Ray buy? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Meili was left with 90 cents after paying for 2 bars of chocolates and 1 bag of chips. The 2 chocolate bars cost $3.30 and the bag of chips costs $2.00. How much money did she have at first? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


A total of 380 movie tickets were sold in two days. 90 fewer tickets were sold on the first day than on the second day. How many tickets were sold on the first day? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Remove the 90 difference: 380 - 90 = 290; this is two equal first-day amounts, so first day = 290 / 2 = 145.


Mrs Tan bought 500 g of flour. She used 12 g of flour for each cupcake. If she baked 9 cupcakes in all, how much flour had she left? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> g


Huni bought 3 cookies for $5.00 and received 1 cookie for free. How much did she pay for 12 cookies? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

For every 3 paid + 1 free = 4 cookies. 12 cookies = 12 / 4 = 3 groups, so she paid for 3 x 3 = 9 cookies = 3 x $5.00 = $15.00.


A shopkeeper had some oranges. She threw away 13 rotten oranges. She packed the remaining 216 oranges equally into 8 boxes. a) How many oranges did the shopkeeper have at first? b) How many oranges were there in each box? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />

a) At first = 216 + 13 = 229 oranges. b) Each box = 216 / 8 = 27 oranges.


Lily went shopping and bought a dress, a bag and a watch. She paid $605 for a dress and a bag. The bag cost 4 times as much as the dress. The watch cost $19 more than the bag. (a) How much did Lily pay for the bag? (b) How much did she pay for the watch? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


Carol had a square plot of land. She planted 7 trees on each side. A tree was planted at each corner. How many trees were there in total? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

4 sides x 7 = 28 counts, but the 4 corner trees are each counted twice, so 28 - 4 = 24. (Answer key: 5 x 4 = 20 non-corner-overlap, + 4 corners = 24.)


Mr Tan bought 6 loaves of bread. Each loaf is cut into 8 slices of bread. How many slices of bread did Mr Tan have altogether?


Jessica has 75 cookies. She has 3 times as many cookies as Jessica. How many cookies do Jessica and Kim have altogether?

Per the answer key the correct option is 100.


Mr Lim bought 6 boxes of erasers to give to his students. There were 24 erasers in each box. In the end, Mr Lim had 18 erasers left. How many erasers did he give to his students?

Total erasers = 6 x 24 = 144. Given away = 144 - 18 = 126.


Find the product of 34 and 6. <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Mr Mohammad had some stickers. He packed some stickers into 8 packets. There were 46 stickers in each packet. He had 37 stickers left unpacked. How many stickers did Mr Mohammad have at first? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Amy collected 78 seashells. June collected 42 seashells. How many more seashells must June collect so that she has 3 times as many seashells as Amy? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

3 times Amy = 3 x 78 = 234. June needs 234 - 42 = 192 more seashells.


Arrange the following fractions from the smallest to the greatest.

[2/3], [5/9], [1/8]


A dress and a T-shirt cost $41 altogether.
The dress costs $27.30. How much does the T-shirt cost?


\(\dfrac{5}{12}\) - \(\dfrac{1}{4}\) =
Give your answer in its simplest form.


\(\dfrac{1}{2}\) + \(\dfrac{1}{7}\) =
Give your answer in its simplest form.


The following table shows a menu at a cafe.

Burger $6.90
Cupcake $2.50
Pizza $7.80
Waffle $5.50

Andy bought a waffle and another item from the menu. He spent $12.40 in all. What was the cost of the other item that he bought? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

$12.40 - $5.50 (waffle) = $6.90, which is the price of the burger.


[2/3] = [<input type="text" id="input_0" class="fill-blank-input" placeholder="?" />/18]
Find the missing number in the box.


Cindy spent her money on a bag and a pair of shoes. The bag costs $21.90. The pair of shoes costs $18 more than the bag. How much did she spend altogether? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Tom saved $49.85. Sam saved $12.50 more than Tom. Paul saved $9.85 less than Sam. How much did Paul save? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Mr Leong asked his pupils to convert 9 m 6 cm to cm. Which pupil wrote it correctly?

9 m = 900 cm, plus 6 cm = 906 cm. Boon Huat is correct.


Which one of the following will add up to an answer that is an odd number?

An odd sum needs one odd and one even number. 1719 (odd) + 2002 (even) = 3721, which is odd.


4 thousands 27 hundreds = thousands and 17 hundreds.


There are 266 children going to the zoo. There are 7 buses and each bus can seat 35 children. How many children will not have a seat?

7 buses x 35 seats = 245 seats. 266 - 245 = 21 children without a seat.


Jack, Marcy, Tabby and Porsha have some stickers. Jack has 15 more stickers than Marcy. Marcy has 28 fewer stickers than Tabby. Porsha has 10 more stickers than Jack. Who has the most stickers?

Let Marcy = M. Jack = M+15, Porsha = M+25, Tabby = M+28. Tabby has the most (M+28).


2503 = 2000 + <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> + 3


Convert 205 min into hours and minutes. <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> h <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> min


Arrange the following fractions from the greatest to the smallest. 3/5 , 1/4 , 7/10 <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> , <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> , <input type="text" id="input_2" class="fill-blank-input" placeholder="?" />

Convert to tenths/twentieths: 7/10 = 0.7, 3/5 = 0.6, 1/4 = 0.25. Greatest to smallest: 7/10, 3/5, 1/4.


How many tens are there in the quotient of 1560 ÷ 6? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> tens


There are 3546 chocolate cupcakes. There are 1649 more chocolate than vanilla cupcakes. How many vanilla cupcakes are there? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


The sum of two numbers is 300. The difference between the two numbers is 70. What is the smaller number? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Smaller number = (sum - difference) ÷ 2 = (300 - 70) ÷ 2 = 230 ÷ 2 = 115.


The capacity of a jug is 1200 ml. 3 bottles can fill the jug completely. 4 glasses of water can fill a bottle completely. What is the capacity of a glass? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> ml


Arrange the following in an increasing order, beginning from the smallest. 7 l 404 ml , 74 l , 7074 ml , 7004 ml <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> , <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> , <input type="text" id="input_2" class="fill-blank-input" placeholder="?" /> , <input type="text" id="input_3" class="fill-blank-input" placeholder="?" />


The opening hours of a clinic are shown. 9.00 a.m. to 12.30 p.m. ; 2.15 p.m. to 5.15 p.m. ; 6.30 p.m. to 9.45 p.m. How long is the clinic open each day? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> h <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> min


Mrs Lee sewed 7 flowers on each dress. She had 69 flowers left after sewing 183 dresses. How many flowers did Mrs Lee have at first? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Flowers used = 183 x 7 = 1281. With 69 left over, she started with 1281 + 69 = 1350.


Martha's dance lesson starts at 5.35 p.m. She needs to be at the dance studio 25 minutes before the start of her lesson to do her warmup. The journey from Martha's house to the dance studio takes 45 minutes. (a) What time must Martha leave her house? (b) Martha's dance lesson ended at 6.45 pm. How long was her dance lesson? Give your answer in h and min. (a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />

(a) Arrive 25 min before 5.35 p.m. = 5.10 p.m.; subtract 45 min travel = 4.25 p.m. (b) 5.35 p.m. to 6.45 p.m. = 1 h 10 min.


Sue collected 2075 seashells. Lina collected 779 seashells. Sue gave Lina some seashells so that they both have an equal number of seashells in the end. How many seashells did Lina have in the end? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Difference = 2075 - 779 = 1296. Sue gives half, 1296 ÷ 2 = 648, to make them equal. Lina ends with 779 + 648 = 1427.


A shopkeeper has a total of 14 two-dollar and ten-dollar notes. He has $76 altogether. How many two-dollar notes does he have? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Guess-and-check: 8 two-dollar notes = $16 and 6 ten-dollar notes = $60; 8 + 6 = 14 notes and $16 + $60 = $76. So 8 two-dollar notes.


Mr Ravi and Mr Goh had the same amount of flour in their bakery. Mr Ravi used 960 g of flour while Mr Goh used 2500 g of flour to bake some bread. In the end, Mr Ravi had 3 times as much flour left as Mr Goh. How much flour did each of them have at first? Give your answer in kilograms and grams. <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Difference used = 2500 - 960 = 1540 g, which equals 2 units (Ravi's 3 units minus Goh's 1 unit). 1 unit = 770 g, so Goh's leftover = 770 g. At first = 770 + 2500 = 3270 g = 3 kg 270 g.


There are 612 erasers altogether. Sam packs them equally into 6 boxes. How many erasers are there in each box?

Divide the total equally: 612 ÷ 6 = 102 erasers in each box.


What is the difference between the values of digit '5' and digit '7' in 5370?

In 5370 the value of 5 is 5000 and the value of 7 is 70. Difference = 5000 − 70 = 4930.


Write four thousand and sixty-three in numerals. <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Four thousand and sixty-three = 4063 (4 thousands, 0 hundreds, 6 tens, 3 ones).


Find the quotient when 362 is divided by 5. <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

362 ÷ 5 = 72 remainder 2. The quotient is 72.


Michelle is 27 years old this year. Kenneth will be 26 years old in 10 years' time. How much older is Michelle than Kenneth? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Kenneth's age now = 26 − 10 = 16. Michelle is 27, so she is 27 − 16 = 11 years older.


Form the smallest 3-digit odd number and divide it by 4. What answer will you get? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

The smallest 3-digit odd number is 101. 101 ÷ 4 = 25 remainder 1.


There were 187 adults at a food fair. There were 58 more adults than children at the food fair. How many people were there at the food fair altogether? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Rita and Don have $5010 altogether. Yvonne and Rita have $8273 altogether. If Yvonne has $3958, how much does Don have? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Asha had some beads. She used 35 beads to make a necklace. Then, she bought another 42 beads and had 105 beads left.
a) How many beads will Asha need to make 2 similar necklaces?
b) How many beads did Asha have at first?
a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />
b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />

a) One necklace uses 35 beads, so 2 necklaces need 35 × 2 = 70 beads. b) Before buying 42 she had 105 − 42 = 63; before making the necklace she had 63 + 35 = 98 beads at first.


Which of the following number has a remainder of 2 when divided by 3?


Which of the following number cannot be divided by 6 exactly?

813 is odd, so it is not divisible by 6 (a multiple of 6 must be even). 354, 432 and 768 are all even with digit sums divisible by 3.


When a number is divided by 4, the quotient is 117 with remainder 1. What is the number?


A baker bakes 122 cupcakes a day. How many cupcakes can he bake in 7 days?


Randy has 318 bookmarks. His sister has 6 times as many bookmarks as Randy. How many bookmarks does his sister have? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


A fruit seller has 405 mangoes. He packed the mangoes in 5 boxes. How many mangoes are there in each box? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Miss Rita has a ribbon that is 252cm long. She cuts the ribbon into 9 equal strips. How long is 1 strip of the small ribbon? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Billy and Rick made 162 paper cranes to decorate the school hall. Billy made 5 times as many paper cranes as Rick. (a) How many paper cranes did Billy make? (b) How many paper cranes did Rick make? <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />

Together they make 5 + 1 = 6 units = 162, so 1 unit (Rick) = 162 / 6 = 27. Billy = 5 x 27 = 135. (a) Billy made 135. (b) Rick made 27.


Uncle Jacob donated 260 pencils to a children's home. He packed the pencils into gift boxes. Each gift box contains 7 pencils. What is the least number of pencils he needs if he wants 7 pencils in every box? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

260 / 7 = 37 remainder 1. The leftover box has 1 pencil, so he needs 7 - 1 = 6 more pencils to make a complete box of 7.


Susan has $258. She has thrice as much money as Kartijah. How much money do Susan and Kartijah have altogether? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


There are 361 Chinese books in a library. The number of English books in the library is 6 times as many as the number of Chinese books. How many more English books than Chinese books are there in the library? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

English books = 361 × 6 = 2166. More English than Chinese = 2166 − 361 = 1805.


Kevin has 3 times as many toy cars as Peter. After Kevin gives away 20 cars to his sister, he will have the same number of toy cars Peter has. How many toy cars does Kevin have at first? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Kevin's 3 units minus 20 equals Peter's 1 unit, so 2 units = 20, 1 unit = 20 ÷ 2 = 10. Kevin = 3 × 10 = 30.


Halim had some money. He spent $40 and saved the remaining $30.80. (a) How much money did Halim have at first? Halim saved $10.60 more than Mei Ling. (b) How much money did Mei Ling save? <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


Write 615¢ in dollars. $<input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Alice bought 34 trays of eggs. There were 5 eggs in each tray. How many eggs did she buy? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Michael had 348 stickers. Sarah had 3 times as many stickers as Michael. How many stickers did they have altogether? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Ali had 74 apples. He packed them into as many bags of 6 as possible. How many apples were left unpacked? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

74 ÷ 6 = 12 remainder 2, so 2 apples were left unpacked.


There were 4 times as many adults as children in a mall. After 132 adults and 9 children went home, there was an equal number of adults and children in the mall. How many children were in the mall at first? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Let children = c, adults = 4c. After: 4c − 132 = c − 9, so 3c = 123, c = 41.


In a school hall, chairs were arranged in 9 equal rows. Each row has 14 chairs. (a) How many chairs were there in the hall? (b) Sam rearranged all the chairs into 7 equal rows. How many chairs were there in each row? <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />

(a) 14 × 9 = 126 chairs. (b) 126 ÷ 7 = 18 chairs per row.


Harry has $54.30. He wants to buy both the toy car ($31.95) and the toy aeroplane ($29.80). (a) What is the total cost of a toy car and a toy aeroplane? (b) How much more money does Harry need? <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


Which of the following has the greatest value?


When a number is divided by 8, the quotient is 412 and the remainder is 4. What is the number?

Number = quotient × divisor + remainder = 412 × 8 + 4 = 3296 + 4 = 3300.


What is the missing number in the box?
5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 = 4 ×

Eight 5s = 40. 40 = 4 × 10, so the missing number is 10.


The sum of two numbers is 156. The bigger number is 91. What is the smaller number?


There were 5139 people at the carnival. 924 of them were children, 2308 were women and the rest were men. How many men were there at the carnival?


Justin and Sean have a total of 392 cards. Justin has 7 times as many cards as Sean. How many cards does Sean have?

Sean is 1 unit, Justin is 7 units, total 8 units = 392. 1 unit = 392 ÷ 8 = 49.


<input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> × <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> = 49. What is the value of one face?

The two identical faces multiply to 49. 7 × 7 = 49, so each face = 7.


Subtract 1965 from 7201. <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Find the product of 908 and 6. <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Write two numbers that will give a sum of 3450. <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />

Any two numbers that add to 3450, e.g. 1662 + 1788 = 3450.


Use all the digits 0, 3, 4, 9, find the difference between the greatest possible 4-digit even number and smallest possible 4-digit odd number. <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Greatest 4-digit even number from 0,3,4,9 is 9430. Smallest 4-digit odd number is 3049. 9430 - 3049 = 6381.


Marie spent a total of $300 on Monday and Tuesday. She spent $44 lesser on Monday than on Tuesday. How much did she spend on Tuesday? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Total + difference = 2 × Tuesday: 300 + 44 = 344. Tuesday = 344 ÷ 2 = $172.


Alice has 46 marbles. Belle has twice as many marbles as Alice. Carol has four times as many marbles as Belle. How many marbles does Carol have? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Mr Tan has 98 sweets. He wants to give all his sweets to his 8 students. How many more sweets does he need such that each student will receive an equal number of sweets? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

98 ÷ 8 = 12 remainder 2. To make an equal share he needs 8 - 2 = 6 more sweets.


In the school library, there are 400 English books. There are 520 fewer English books than Chinese books. (a) How many Chinese books are there in the school library? (b) The number of Chinese books is four times the number of Malay books. How many Malay books are there in the library? <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


A baker baked some tarts. The tarts were packed equally into boxes of 8. (a) There were 87 boxes of tarts. How many tarts did he bake in total? (b) The baker received $161 for some boxes of tarts sold. Each box of tarts cost $7. How many tarts did he sell altogether? <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


Tommy and Sue had an equal amount of money at first. Tommy used $403 to buy a handphone and Sue used $152 to buy a bag. Sue had twice as much money left as Tommy. (a) How much money did Tommy have left? (b) How much money did Sue have at first? <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />

They started equal. Sue's left - Tommy's left = the difference in spending = 403 - 152 = 251. Sue's left = 2 × Tommy's left, so Tommy's left = 251 and Sue's left = 502. (a) Tommy had $251 left. (b) Sue had 502 + 152 = $654 at first.


Which of the following is the same as 12 m 7 cm?


Arrange the following fractions from the smallest to the greatest. 3/10, 1/2, 3/5


Find the value of A and B in the boxes. 3/7 = A/21 = 18/B


The capacity of a pail was 450 ml. The capacity of the pail was three times as much as a container. The capacity of the container was twice as much as a cup. Find the capacity of the cup.


Find the missing number in the box. 1/3 = 4/<input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

1/3 = 4/12 (multiply numerator and denominator by 4). The missing number is 12.


Give a possible fraction that is smaller than 1/5. <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

1/6 is smaller than 1/5 because with the same numerator, a larger denominator gives a smaller fraction. (Other answers such as 1/10 are also acceptable.)


The mass of three students, Adele, Belle and Cali was 129 kg. Adele left and the mass of Belle and Cali became 87 kg. Cali's mass was 41 kg. Who was the lightest and what was her mass? Girl: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />, <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> kg

Adele = 129 - 87 = 42 kg. Belle = 87 - 41 = 46 kg. Cali = 41 kg. Cali is the lightest at 41 kg.


The mass of a box containing an iron ball is 326 g. When Alice puts in 4 more such iron balls into the box, the mass of the box and the iron balls becomes 786 g. (a) What is the mass of an iron ball? (b) What is the mass of the box? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> g, <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> g


Write 2 km 560 m in metres. <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Arrange this set of fractions in order, beginning with the smallest. 2/5 , 2/7 , 2/3 <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> , <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> , <input type="text" id="input_2" class="fill-blank-input" placeholder="?" />

With the same numerator, the larger the denominator the smaller the fraction. 2/7 < 2/5 < 2/3.


Mr Tan used a 150-cm string to tie a box. He used another string that was 3 times as long to tie a bigger box. What was the total length of both strings used in centimetres? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Express \(\dfrac{9}{12}\) in its simplest form.

Divide numerator and denominator by 3: 9/12 = 3/4.


Find the value of \(\dfrac{6}{10}\) - \(\dfrac{1}{5}\). Give your answer in the simplest form.


Find the value of \(\dfrac{1}{3}\) + \(\dfrac{1}{12}\). Give your answer in the simplest form.


Mary poured 7 bottles of apple juice into a container. Each bottle contains 850 ml of apple juice. Given the container has a capacity of 6000 ml, how much more apple juice would be needed to fill the container completely? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Ben took 1h 50 min to walk from his house to the park. He reached the park at 9.10 a.m. What time did he leave his house? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


The total mass of a basket and some watermelons is 145 kg. The mass of the empty basket is 6 kg. Ahmad sold some of the watermelons and had 26 kg of the watermelon left. How many kilograms of the watermelons was sold? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Watermelons at first = 145 - 6 = 139 kg. Sold = 139 - 26 = 113 kg.


In the sum of 333 and 999, the digit in the _____ place is an even number.

333 + 999 = 1332. Digits: thousands 1, hundreds 3, tens 3, ones 2. Only the ones digit (2) is even.


Which of the following does not have the same measurement as the rest?

520 cm, 5 m 20 cm and 500 cm + 20 cm all equal 520 cm. 5 m 2 cm = 502 cm, which is different.


A number when divided by 8 gives a remainder of 4. Which of the following can be added to the number so that it will leave no remainder when divided by 8?

A remainder of 4 means it is 4 short of the next multiple of 8, so adding 4 makes it exactly divisible by 8.


Adam, Bobby, Caden and Dennis collected some toy cars. Adam collected the least number of toy cars. Bobby collected more toy cars than Dennis but fewer than Caden. Who collected the most number of toy cars?

Adam is least; Dennis < Bobby < Caden, so Caden collected the most.


Use all the digits 6, 5, 1, 3 to form the smallest odd number.

Ans: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Odd means the ones digit must be odd. Smallest uses smallest leading digits: 1, 3, 6 then odd ones digit 5 → 1365.


I am a 4-digit number. The digits in my thousands place and ones place are the same. The digit in my tens place is 8 less than the digit in my thousands place. The value of the digit in my hundreds place is 300. What number am I?

Ans: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Hundreds value 300 → hundreds digit 3. Tens is 8 less than thousands; thousands = ones. Thousands 8, tens 0, ones 8 → 8308.


Mrs Singh bought 45 cookies. She bought 9 times as many cookies as Mdm Aminah. How many cookies did Mdm Aminah buy?

Ans: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

45 is 9 times Mdm Aminah's amount, so Mdm Aminah bought 45 ÷ 9 = 5 cookies.


Mary had $548. She had $245 more than her sister. How much did her sister have?

Ans: $<input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Study the pattern. What is the missing number?

220, 230, 200, <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />, 180, 190


Mrs Tan bought a packet of orange juice. She poured all the orange juice equally into 9 cups of 225 ml each. What is the volume of the orange juice in the packet? Give your answer in l and ml.

Ans: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> l <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> ml


A pair of jeans cost $66. A skirt is $9.20 cheaper than the jeans. Find the cost of the skirt.

Ans: $<input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


The table shows the opening hours of a clinic.

Morning: 8.00 a.m. to 11.30 a.m.
Afternoon: 2.00 p.m. to 4.00 p.m.
Evening: 6.30 p.m. to 9.00 p.m.

How many hours is the clinic open in a day?

Ans: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> h

Morning 3 h 30 min + afternoon 2 h + evening 2 h 30 min = 8 h.


What are the missing numbers in the fractions below?

2/a = 6/15 = b/25

Ans: a = <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />, b = <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


Which of the following fractions is smaller than 1/3?

2/9, 1/2, 5/6

Ans: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

1/3 = 3/9. Comparing: 2/9 < 3/9, while 1/2 and 5/6 are larger than 1/3. So 2/9 is smaller than 1/3.


Julie collected 1480 stickers. Stephanie collected 288 stickers more than Julie.

(a) How many stickers did Stephanie collect?
(b) How many stickers did the two girls collect altogether?

Ans: (a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />, (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


Mrs Chandra bought 9 boxes of cupcakes. Each box contained 28 cupcakes. She repacked the cupcakes equally into 4 large containers. How many cupcakes were there in each large container?

Ans: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Total cupcakes = 9 × 28 = 252. Per container = 252 ÷ 4 = 63.


Zan ran around his school during his PE lesson. He took 18 minutes to finish running one round.

(a) How long would he take to finish running 5 rounds, given that he took the same amount of time for every round?
(b) Zan completed his 5 rounds at 11.45 a.m. What time did he start running?

Ans: (a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> min, (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


Four students have written the following statements in their books.
Which one of the following statements is correct?

203 cm = 200 cm + 3 cm = 2 m 3 cm. The other conversions are wrong.


A highlighter costs $2.20. An eraser costs $0.45.
What is the total cost of a highlighter and two erasers?


Arrange the fractions from the smallest to the greatest.
3/9 , 1/9 , 4/9
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> , <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> , <input type="text" id="input_2" class="fill-blank-input" placeholder="?" />

Same denominator (9), so order by numerator: 1 < 3 < 4. Smallest to greatest: 1/9, 3/9, 4/9.


There are 20 apples and bananas altogether.
There are 4 times as many apples as bananas.
How many bananas are there?
There are <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> bananas.

Bananas = 1 unit, apples = 4 units, total = 5 units = 20. So 1 unit = 20 ÷ 5 = 4 bananas.


Sam is 170 cm tall.
Betty is 12 cm shorter than Sam.
Daniel is 6 cm taller than Betty.
What is Daniel's height?
Daniel is <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> cm tall.


Kelly and Mandy had the same number of stamps. After Mandy gave Kelly 5 stamps, the number of stamps Kelly had became 30.
How many stamps did Kelly and Mandy have altogether at first?
Kelly and Mandy had <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> stamps altogether.

Kelly at first = 30 - 5 = 25 stamps. Mandy had the same, so total = 25 + 25 = 50 stamps.


Monica started watching a movie at 4.15 p.m. and ended at 6.05 p.m. What is the duration of the movie?


Arrange the following numbers from the smallest to the greatest.

7 937, 3 797, 7 397, 3 977

Ans: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />, <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />, <input type="text" id="input_2" class="fill-blank-input" placeholder="?" />, <input type="text" id="input_3" class="fill-blank-input" placeholder="?" />

Compare thousands first: 3 797 and 3 977 (three thousands) come before 7 397 and 7 937. Then compare the rest: 3 797 < 3 977 and 7 397 < 7 937.


What is the value of 21 tens, 5 hundreds and 3 ones?


Arrange the following numbers from the smallest to the largest. 4501, 5401, 4051, 5041

Smallest to largest: 4051, 4501, 5041, 5401 (compare thousands then hundreds then tens).


Benny had some marbles at first. He gave 4 of his friends 268 marbles each and had 4 marbles left. How many marbles did Benny have at first?

4 × 268 = 1072 given away, plus 4 left = 1076.


When a number is divided by 6, the quotient is 24. The remainder is 5. What is the number?

Number = quotient × divisor + remainder = 24 × 6 + 5 = 144 + 5 = 149.


Daniel and his friends left Bird Paradise at 18 20. They spent 7 h 55 min at Bird Paradise. What time did they reach Bird Paradise?

They reached before they left, so subtract the duration: 18 20 − 7 h 55 min = 10 25.


Form the greatest 4-digit odd number using all the digits shown in the cards. 4, 0, 3, 5 <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Greatest odd number must end in an odd digit. To be greatest, put 5 then 4 then 0 in front and end in the odd 3: 5403.


Study the number pattern. What is the missing number? 3657 , <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> , 3755 , 3804 , 3853

The pattern increases by 49 each time. 3657 + 49 = 3706 (and 3706 + 49 = 3755).


A set of numbers is shown. Which 2 numbers add up to 831? 471, 534, 307, 360 <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> and <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


Complete the following equation. 9 × 8 = <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> − 18


Write the time in 24-hour clock. 12.01 a.m. = <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

12.01 a.m. is one minute after midnight, written as 00 01 in 24-hour clock.


Find the missing number in the box. <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> × 3 = 927


Find the difference between 4010 and 419. <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Arrange the fractions in order. Begin with the greatest. 3/8 , 1/4 , 7/11 , 3/7 <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> , <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> , <input type="text" id="input_2" class="fill-blank-input" placeholder="?" /> , <input type="text" id="input_3" class="fill-blank-input" placeholder="?" />


Aaron had 240 cards. He shared the cards equally with 3 of his friends. How many cards did each of them get? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Shared among Aaron and 3 friends = 4 people: 240 ÷ 4 = 60.


A fruit seller had 3850 oranges. He threw away 86 rotten oranges and sold 2368 oranges. How many oranges had he left? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


What are the missing digits? 8 A 3 9 − 5 1 4 2 = 3 3 9 B <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> , <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


Mrs Lee bought some pencils. She gave 105 pencils to her students and packed the remaining pencils into 15 packets. There were 5 pencils in each packet. How many pencils did Mrs Lee have at first? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


David holds up a card which reads 5167. He describes this 4-digit number in two sentences. (a) The 4-digit number is an even number. (b) The value of the digit in the thousands place is 1000. Which statement is true?

5167 ends in 7, so it is odd, not even: (a) is false. The thousands digit 5 has value 5000, not 1000: (b) is false. Both false.


Mandy bought 3 times as many sweets as Alex. She bought 80 more sweets than Alex. How many sweets did they buy altogether? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

The 80 extra equals 2 of Alex's units (3 units − 1 unit), so 1 unit = 80 ÷ 2 = 40 (Alex). Altogether = 4 units = 4 × 40 = 160.


A baker has 294 donuts. He packed 7 donuts in one box. How many boxes of donuts are there? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


There were some marbles in a box. \(\dfrac{1}{3}\) of the marbles were green and \(\dfrac{5}{12}\) of the marbles were red. The rest of the marbles were blue. What fraction of the marbles were blue? Give your answers in its simplest form.


The table shows the programmes at the Science Centre. The Human Body 20 min, Forensic Investigative Science 1 h 45 min, Stargazing 35 min. (a) John attended the Stargazing programme at 11.45 a.m. What time did he finish the programme? (b) Winnie attended The Human Body programme at 10 a.m. She rested for 30 minutes and then continued with the Forensic Investigative Science programme. What time did she complete the Forensic Investigative Science programme? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> , <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


A table and 4 similar chairs cost $179.60. The table and 1 such chair cost $106.40. (a) What was the cost of 3 such chairs? (b) The table cost $57.60 more than the chair. What is the cost of the table? $<input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> , $<input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


A total of 1500 people attended a concert. There were 992 adults. The rest were children. (a) How many children attended the concert? (b) There were same number of men and women attended the concert. During the concert, some women left. In the end, there were 4 times as many men as women who stayed on till the end of the concert. How many women left the concert? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> , <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />

(a) 1500 − 992 = 508 children. (b) Men = women = 992 ÷ 2 = 496. At end men (496) = 4 × women left = women remaining = 496 ÷ 4 = 124. Women who left = 496 − 124 = 372.


Which of the following numbers is the smallest even number?

Even numbers end in 0,2,4,6,8. Even options are 2392 and 2930; the smaller is 2392.


There were 9000 spectators watching a football match. 856 of them were female spectators. How many male spectators were there?


A bookshop sold a highlighter and a pen for $3. Claire bought 6 highlighters and 6 pens. How much did Claire pay altogether?

1 highlighter + 1 pen = $3. 6 sets cost 6 x $3 = $18.


A glass of orange juice costs $2.50 and a glass of lemon juice costs $1.80. Claire bought 2 glasses of orange juice and a glass of lemon juice. How much did she pay?


Find the difference between 2270 and 1654. <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Arrange the following fractions in order. Begin with the greatest.
7/10, 2/5, 1/2 <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />   (c) <input type="text" id="input_2" class="fill-blank-input" placeholder="?" />


The difference between two numbers is 785. The bigger number is 1072. What is the other number? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Derrick and Evan shared some stickers equally. After Derrick gave Evan 47 stickers, how many more stickers does Evan have than Derrick? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

They started equal. Giving away 47 makes Derrick 47 fewer and Evan 47 more, so the gap is 47 + 47 = 94 stickers.


When a number is divided by 4, it has a remainder of 2. The number is between 20 and 25. What is the number? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Multiples of 4 between 20 and 25 plus 2: 20 + 2 = 22, which is between 20 and 25.


100 g of cherries cost $2. What is the cost of 1 kg of cherries? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


A shopkeeper had 297 story books. He wanted to pack them equally into 8 boxes. How many story books were left unpacked? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

297 / 8 = 37 remainder 1; 1 book is left unpacked.


Laurence took 1 h 55 min to finish his homework. He ended at 2.15 p.m. What time did he start doing his homework? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Jacob bought 9 packets of potato chips. He planned to eat a packet every 3 days. How many days would he take to finish eating all the packets of potato chips? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Rita collected some beads. She gave 45 of them away and packed the remaining beads into 5 bags. There were 67 beads in each bag. How many beads did Rita collect? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

5 bags x 67 = 335 remaining beads; add the 45 given away: 335 + 45 = 380.


The capacity of a beaker is 240 ml. 2 such beakers of water can fill a jug completely. 6 such jugs of water can fill a tank completely. What is the capacity of the tank? Write your answer in litres and millilitres. <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


Mary, Laura and Joyce baked some cookies. Mary baked twice as many cookies as Joyce. Laura baked thrice as many cookies as Mary. Laura baked 405 more cookies than Joyce. How many cookies did Mary bake? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Let Joyce = 1 unit. Mary = 2 units, Laura = 3 x Mary = 6 units. Laura - Joyce = 6 - 1 = 5 units = 405, so 1 unit = 81. Mary = 2 x 81 = 162.


Alan had $50. He bought a pair of shorts and a blouse. A blouse cost $12 more than a pair of shorts. He received $2 change. How much did a pair of shorts cost? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Spent = $50 - $2 = $48. Shorts + blouse = $48 and blouse = shorts + $12, so 2 x shorts + $12 = $48; 2 x shorts = $36; shorts = $18.


In 7509: 7 thousands, 5 hundreds, 0 tens, 9 ones. The 0 is in the tens place.


Which one of the following is the same as 5050 g?


Mrs Veerasamy brought her children to the swimming pool. They started swimming at 4:40 pm. They finished swimming at 6:05 pm. How long did they swim in the pool?


The difference between two numbers is 168. The smaller number is 709. What is the greater number?

Greater number = smaller + difference = 709 + 168 = 877.


+ 1/3 = 8/9
What is the missing fraction in the box?


Arrange the following numbers in order. Begin with the greatest number.
6900, 9060, 6090, 6009 <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />   (c) <input type="text" id="input_2" class="fill-blank-input" placeholder="?" />   (d) <input type="text" id="input_3" class="fill-blank-input" placeholder="?" />


9458 = <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> + 400 + 58
What is the missing number?


Find the difference between 9000 and 5826. <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Mrs Rebecca spent 1 h 10 min baking cookies. She finished baking at 2:30 pm. What time did she start baking? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Start = finish - duration = 2:30 pm - 1 h 10 min = 1:20 pm.


A bottle has a capacity of 2000 ml. It contains 1560 ml of water. How much more water is needed to fill up the bottle? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


What are the values of (a) and (b) in the number pattern?
7868, 7874, <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />, 7886, <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />, 7898, 7904, 7910


Bala took 6 h 45 min to travel from Singapore to Genting Highlands. Mr Ng took 25 min more to travel the same distance. Mr Ng started travelling from Singapore at 15 00. What time did Mr Ng reach Genting Highlands? Give your answer in 24-hour clock. <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Sally bought a dress. She gave the cashier $50 and received $17.20 change. What was the cost of the dress? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Cost = amount given - change = $50 - $17.20 = $32.80.


Emily, Fiona and Gail shared some sweets. Gail had 58 sweets. Gail had 46 more sweets than Fiona. Emily had 3 times as many sweets as Fiona.
(a) How many sweets did Fiona have?
(b) How many sweets did the 3 girls have in all? <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


Vivian sold 785 cookies on Saturday. She sold 698 fewer cookies on Saturday than on Sunday. How many cookies did Vivian sell on both days? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Peter competed in a 5-km marathon. After running 2 km 850 m, he walked for a while before running again to complete the last 800 m. What was the distance that Peter walked during the marathon? Give your answer in kilometres and metres. <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Mr Goh paid $273 for 1 bag and 5 similar books. Each bag cost $93 more than each book. How much did he pay for each book? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


In 4960, reading right to left: 0 ones, 6 tens, 9 hundreds, 4 thousands. So 9 is in the hundreds place.


Which of the following is the greatest odd number?

Odd numbers end in an odd digit. 9750 and 9778 are even. Of the odd ones (9639, 9643), 9643 is greater.


Which of the following has the same value as 5 × 4?

5 × 4 means four groups of 5 (or 5 groups of 4) = 20. 5 + 5 + 5 + 5 = 20.


2/3 = /12. What is the missing numerator in the box?

Multiply numerator and denominator by 4: 2/3 = (2×4)/(3×4) = 8/12. Missing numerator is 8.


Stephanie baked 108 cupcakes for a party. She packed 8 cupcakes in each bag. How many cupcakes were left unpacked?

108 ÷ 8 = 13 remainder 4. So 4 cupcakes were left unpacked.


Arrange these fractions from the greatest to the smallest.
1/2 , 5/8 , 3/10 , 5/9


At first, Edwin had 35 more stickers than Gordon. Gordon then gave 16 stickers to Edwin. How many fewer stickers did Gordon have than Edwin in the end?

Each transfer of 16 widens the gap by 2 × 16 = 32. New difference = 35 + 32 = 67.


There are 9 cookies in a box. How many cookies are there in 6 such boxes?
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


The difference between two numbers is 546. The greater number is 7 times as big as the smaller number. What is the greater number?
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Greater = 7 units, smaller = 1 unit; difference 6 units = 546, so 1 unit = 91. Greater = 7 × 91 = 637.


According to his watch, Tom started painting at 15 45. His watch was 20 minutes fast. He took 35 minutes to complete his painting. According to actual time, what time did Tom complete his painting?
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Mrs Lee bought a blouse for $41.65. She also bought a pair of shoes for $33.80. She gave the cashier a $100 note. How much change did she receive?
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Mrs Lim had a jug of fruit punch at first. After pouring the fruit punch equally into 8 glasses, she had 250 ml of fruit punch left in the jug. Each glass contained 350 ml of fruit punch. How much fruit punch was there in the jug at first? Give your answer in litres and millilitres.
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> l <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> ml


Mrs Tan took 1 h 40 min to make a pizza. Miss Ong took 30 min more than Mrs Tan to bake a cake.
a) How much time did Miss Ong take to bake the cake? Give your answer in hours and minutes.
b) Miss Ong started baking the cake at 11.10 am. What time did she finish baking the cake?
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> h <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> min ; finish time <input type="text" id="input_2" class="fill-blank-input" placeholder="?" />


Adeline collected 4 times as many stickers as Kathy. They collected 120 stickers altogether.
a) How many stickers did Kathy collect?
b) Adeline and Kathy decided to pack the 120 stickers equally into packets of 9 to give to their friends. How many stickers were left unpacked?
Kathy = <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> ; left unpacked = <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />

a) Total = 5 units = 120, so Kathy (1 unit) = 120 ÷ 5 = 24. b) 120 ÷ 9 = 13 R 3, so 3 left unpacked.


Some teachers and students from Ubi Primary School attended a concert. There were 98 more students than teachers. The number of male teachers was the same as the number of male students. There were 26 male students and 15 female teachers.
a) How many more male teachers than female teachers were there?
b) How many students were there?
Male teachers more than female teachers = <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> ; number of students = <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />

Male teachers = male students = 26. a) 26 − 15 = 11 more male than female teachers. b) Teachers = 26 + 15 = 41; students = 41 + 98 = 139.


Two thousand, three hundred and seventy written as numerals is .


8 x 6 = ÷ 2
What is the missing number in the box?

8 x 6 = 48. The missing number ÷ 2 = 48, so the number is 48 x 2 = 96.


Which one of the following statements is true?

5/6 is more than half (3/6), so 5/6 > 1/2 is true. The other statements are false.


Divide 472 by 8. <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Mr Lee slept at 23 25.
Give the time he slept in 12-hour clock.
Include am or pm in your answer. <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

23 25 in 24-hour clock is after noon. 23 - 12 = 11, so it is 11.25 pm.


Write 3095 g in kilograms and grams.
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> kg <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> g


What is the difference between \(\dfrac{5}{12}\) and \(\dfrac{1}{6}\)?
Give your answer in its simplest form.


Arrange the fractions in order, beginning with the greatest.
1/10, 3/5, 2/9, 2/4
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> (greatest), <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />, <input type="text" id="input_2" class="fill-blank-input" placeholder="?" />, <input type="text" id="input_3" class="fill-blank-input" placeholder="?" />


A fruit seller packs 280 apples into bags of 6.
How many apples are left unpacked? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

280 ÷ 6 = 46 remainder 4. So 4 apples are left unpacked.


A train arrived at Gardens MRT station with 1359 passengers.
247 passengers alighted from the train and 498 passengers boarded the train.
How many passengers were there in the train when it left Gardens MRT station? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Mrs Tan started cleaning her house at 9.35 am.
She took 2 h 45 min to clean her house.
Then she watched a television programme until 2 pm.
How long did she watch the television programme?
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> h <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> min


Mrs Soh had 13 packets of sweets. Each packet had the same number of sweets. She gave 12 pupils a packet each.
From the remaining packet, she gave 7 sweets to each of the same pupils and there was no leftover.
How many sweets did each pupil get in the end? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

The last packet split among 12 pupils at 7 each = 12 x 7 = 84 sweets per packet. Each pupil got one full packet (84) plus 7 = 91 sweets.


Ali and Samad had 80 marbles altogether.
After Ali gave 7 marbles to Samad, Ali had 4 times as many marbles as Samad.
How many marbles did Samad have in the end? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Total stays 80. After giving, Ali = 4 units, Samad = 1 unit, 5 units = 80, 1 unit = 16. Samad had 16 in the end.


Which of the following is five thousand, four hundred and one in numerals?


What is the quotient when 760 is divided by 7?

760 / 7 = 108 remainder 4. The quotient is 108.


Which of the following fractions is equivalent to 2/3?

Multiply 2/3 by 3/3: (2x3)/(3x3) = 6/9. So 6/9 is equivalent to 2/3.


Healing Hands Clinic opens only on weekdays for the timings shown in the table. Mondays to Fridays: 9:00 am - 12:30 pm and 3:30 pm - 8:00 pm; Saturdays and Sundays: Closed. How long is the clinic open on a Tuesday?

Morning: 9:00 am to 12:30 pm = 3 h 30 min. Afternoon: 3:30 pm to 8:00 pm = 4 h 30 min. Total = 3 h 30 min + 4 h 30 min = 8 h.


Arrange the following lengths from the longest to the shortest. 1 m 20 cm, 1 km 2 m, 120 m

Convert to a common unit: 1 m 20 cm = 1.2 m, 1 km 2 m = 1002 m, 120 m. Longest to shortest: 1 km 2 m, 120 m, 1 m 20 cm.


Write the missing number in the number pattern. 7120, 7000, 6880, <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />, 6640, 6520

The pattern decreases by 120 each time. 6880 - 120 = 6760.


Mrs Seto bakes 438 cupcakes. Each box can only fit 4 cupcakes. What is the number of boxes she will need to pack all the cupcakes? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

438 / 4 = 109 remainder 2. The leftover 2 cupcakes still need a box, so she needs 109 + 1 = 110 boxes.


The difference between two numbers is 832. The greater number is 986. What is the smaller number? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Smaller number = greater number - difference = 986 - 832 = 154.


There are 30 apples and 25 pears in a crate. How many fruits are there in 6 similar crates? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

One crate has 30 + 25 = 55 fruits. 6 crates have 55 x 6 = 330 fruits.


The sum of 2 numbers is 3764. The difference of the 2 numbers is 132. Find the greater number. <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Twice the smaller number = 3764 - 132 = 3632, so smaller = 1816. Greater = 1816 + 132 = 1948.


A bus left a bus interchange with some people onboard. When it reached the first bus-stop, 7 people boarded the bus and 9 people alighted the bus. There were 24 people on the bus when it left the bus-stop. How many people were onboard the bus when it left the bus interchange? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Work backwards: before 7 boarded, there were 24 - 7 = 17. Before 9 alighted, there were 17 + 9 = 26 people.


Anne baked 240 more chocolate tarts than strawberry tarts. She baked 9 times as many chocolate tarts as strawberry tarts. How many tarts did she bake? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Chocolate is 9 units, strawberry is 1 unit, so the difference of 8 units = 240. 1 unit = 30 strawberry tarts. Total = 10 units = 30 x 10 = 300 tarts.


Joe took 1 h 25 min to complete his painting. He finished his painting at 1:10pm. What time did Joe start painting? Give your answer in 24-h clock. <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Jeya collected 2540 bottle caps. He collected 1230 more bottle caps than Hansel. How many bottle caps did they collect altogether? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


In a tin, there are 482 blue, green and yellow marbles altogether. There are three times as many blue marbles as green marbles. There are 42 yellow marbles. How many blue marbles are there in the tin? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Blue + green = 482 - 42 = 440. Blue is 3 units and green is 1 unit, so 4 units = 440, 1 unit = 110. Blue = 3 x 110 = 330.


Li Ming had 432 pears. He put them into 6 equal bags. He gave 2 bags to Ali. How many pears had Li Ming left? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Each bag has 432 / 6 = 72 pears. He gave away 2 bags = 72 x 2 = 144 pears. Left = 432 - 144 = 288.


Arrange the following fractions in order. Begin with the greatest.
1/10, 3/5, 1/2


Kelly arrived in school at 7.10 a.m. She took 35 minutes to travel from home to school. At what time did she leave her home?

Subtract the travel time from the arrival time: 7.10 a.m. - 35 min = 6.35 a.m.


The difference between two numbers is 1718. The smaller number is 6147. What is the other number?

The other number is the larger one: 6147 + 1718 = 7865.


A sum of money was shared among 4 boys. Each boy received $200 and there was $38 left. What was the sum of money?


Cindy needs 175 cm of cloth to make a blouse. She needs 25 cm more cloth to make a dress. How much cloth does Cindy need to make 2 such dresses?

One dress = 175 + 25 = 200 cm. Two dresses = 200 x 2 = 400 cm.


Write 7 thousands, 9 hundreds and 4 ones in numerals.
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

7 thousands = 7000, 9 hundreds = 900, 0 tens, 4 ones = 4. Total = 7904.


Jessica's piano lesson started at 9.45 a.m. Her lesson lasted for 1 h 20 min. At what time did her lesson end?
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> a.m.


Find the value of \(\dfrac{1}{3}\) + \(\dfrac{2}{6}\). Give your answer in the simplest form.


Annie has 3 fifty-cent coins and 4 five-dollar notes. How much money does she have altogether?
$ <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


A tennis racket cost $128. A pair of sports shoes cost $19.60 less than the tennis racket. How much did the pair of sports shoes cost?
$ <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Mrs Wong used 135 g of flour to bake a cake. How much flour did Mrs Wong use to bake 5 such cakes?
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> g


Mandy packed 932 sweets into as many boxes of 9 as possible. How many sweets were left unpacked?
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

932 / 9 = 103 remainder 5, so 5 sweets are left unpacked.


Mr Suri sold 243 apples. Mr Ng sold 3 times as many apples as Mr Suri. How many apples did Mr Ng sell?
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


A pail with a capacity of 2 l contains 1400 ml of water. 3 full jugs of water are needed to fill the pail completely. What is the capacity of a jug?
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> ml

2 l = 2000 ml. Water still needed = 2000 - 1400 = 600 ml. 3 jugs fill 600 ml, so each jug = 600 / 3 = 200 ml.


Ravi had 680 marbles at first. He gave away 8 marbles and packed the remaining marbles into packets of 4 marbles. How many packets of marbles did Ravi pack?
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Janet gave 60 muffins to her classmates. 12 of her classmates took 1 muffin each. The rest of her classmates took 2 muffins each. How many of Janet's classmates took 2 muffins each?
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

12 classmates took 12 muffins. Remaining muffins = 60 - 12 = 48. These were taken 2 each, so 48 / 2 = 24 classmates.


A van can carry up to 8 people. What is the smallest number of vans needed to carry 97 people?
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

97 / 8 = 12 remainder 1. The remaining person still needs a van, so 12 + 1 = 13 vans.


Mr Smith bought 6 oranges and 8 apples with some money. An orange cost twice as much as an apple. How many apples could Mr Smith buy with the same amount of money?
<input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

1 orange = 2 apples in cost, so 6 oranges = 12 apples. Total = 12 + 8 = 20 apples.


A shirt cost $65.30. Mrs Lee bought a bag that cost $24.80 more than the shirt.
(a) What was the cost of the bag?
(b) Mrs Lee gave the cashier a $100 note to pay for the bag. What was the change she received?
(a) $ <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />
(b) $ <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


Mrs Tan started washing and polishing her car at 5.00 p.m. She took 40 min to wash her car and 1 h 25 min to polish her car.
(a) At what time did Mrs Tan complete washing and polishing her car?
(b) How much more time did Mrs Tan take to polish than wash her car?
(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />
(b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


Jerry ran 1650 m. He ran 800 m more than Kenny.
(a) What is the distance Kenny ran in metres?
(b) What is the total distance ran by the two boys? Leave your answer in km and m.
(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> m
(b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> km <input type="text" id="input_2" class="fill-blank-input" placeholder="?" /> m


3480 people were at a football match. 1905 of them were adults and the rest were children. There were 4 times as many boys as girls at the football match.
(a) How many children were at the football match?
(b) How many girls were at the football match?
(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />
(b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


Mrs Ong bought a total of 50 notebooks and scissors for $154. She paid $5 for each notebook and $2 for each pair of scissors.
(a) How many pairs of scissors did she buy?
(b) How many notebooks did she buy?
(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />
(b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />

Assume all 50 are notebooks: 50 x $5 = $250. Excess = $250 - $154 = $96. Each notebook swapped for scissors saves $5 - $2 = $3, so $96 / $3 = 32 notebooks; scissors = 50 - 32 = 18. (a) 18 scissors, (b) 32 notebooks.


What is the missing number in the box?
12/15 = /5

12/15 = 4/5 (divide numerator and denominator by 3). Missing numerator is 4.


Arrange the fractions in order from the smallest to the greatest.
7/9 , 1/2 , 4/9


Jason has 300 stickers. Mabel has 50 fewer stickers than Jason. How many stickers do they have altogether?


Jordan had 100 cards. He gave some cards to 10 friends. Each friend received 6 cards. How many cards did he have left in the end?


What is the missing number in the pattern?
3 , 6 , 10 , 13 , <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> , 20 , 24


Find the remainder when 597 ÷ 6. <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Find the sum of \(\dfrac{1}{2}\) and \(\dfrac{1}{6}\). Express your answer in its simplest form.


Peter had 40 marbles. After he gave 7 marbles to Monica, they had the same number of marbles. How many marbles did Monica have at first? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

After giving away 7, Peter has 40 - 7 = 33, and Monica also has 33. Monica at first = 33 - 7 = 26.


Mr Lee had some oranges. He placed 9 oranges into each box and had 165 boxes of oranges. There were 3 oranges left unpacked. How many oranges did Mr Lee have at first? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Oranges in boxes = 165 x 9 = 1485. Add the 3 left over: 1485 + 3 = 1488.


The sum of 2 numbers is 78. The difference between the 2 numbers is 16.
a) Find the smaller number.
b) Find the bigger number. <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


A lunch box cost $25. A water bottle cost $8 more than a lunch box. A bag cost twice as much as a lunch box.
a) Which item cost the most? How much did that item cost?
b) What was the total cost of the 3 items? <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />   (c) <input type="text" id="input_2" class="fill-blank-input" placeholder="?" />

Lunch box $25, water bottle $25+$8=$33, bag $25x2=$50. The bag costs the most at $50. Total = $25+$33+$50 = $108.


Melody arrived at the bus-stop. She waited 35 min for the bus. She boarded the bus at 13 20 to go to a shopping mall.
a) What time did Melody arrive at the bus-stop?
b) Melody reached the shopping mall at 13 55. She left the shopping mall at 16 15. How long was she at the shopping mall? <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


Susan has 72 pencils. She wants to pack them equally into 8 goodie bags. How many pencils are there in one bag?

72 divided into 8 equal groups: 72 ÷ 8 = 9 pencils per bag.


2/3 = 6/9, so 6/9 - 3/9 = 3/9 = 1/3. The key marks option (3) 1/9; note the simplest correct value is 1/3.


Ms Chong baked 498 cookies. She ate 6 cookies and gave 60 cookies to her friends. How many cookies were left?


What is the quotient when 58 is divided by 3? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

58 ÷ 3 = 19 remainder 1. The quotient is 19.


Arrange the following fractions from the smallest to the greatest.
4/7, 2/5, 1/2 <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />   (c) <input type="text" id="input_2" class="fill-blank-input" placeholder="?" />


Joyce spent $3210 on a sofa set. She also bought a piano for $5630. How much did she spend altogether? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Find the difference between 1072 and 6498. <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Parcel A has a mass of 2240 g. Parcel B has a mass of 1960 g. What is the total mass of Parcels A and B?
Give your answer in kilograms and grams. <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


315 cm of ribbon is cut into 9 equal pieces. What is the length of each piece of ribbon? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


There were 498 children at a concert. There were 24 more children than adults. How many adults and children were there at the concert? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


A fruit seller packed 107 apples into bags. He packed 7 apples into each bag. How many apples were left unpacked? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

107 ÷ 7 = 15 remainder 2, so 2 apples are left unpacked.


The capacity of a bottle is 330 ml. What is the total capacity of six bottles?
Give your answer in litres and millilitres. <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


An aeroplane left Hong Kong at 23 45 and reached Singapore at 04 10 the following day. How long was the flight? <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


In a carpark, there are 852 motorcycles. There are 87 more motorcycles than vans. There are twice as many cars as vans. How many cars are there in the carpark? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


In 8371 the digits are 8 (thousands), 3 (hundreds), 7 (tens), 1 (ones). So 3 is in the hundreds place.


The sum of two numbers is 5211. The smaller number is 1979. Find the greater number.

Greater number = total - smaller = 5211 - 1979 = 3232.


Dan has 4 boxes of balloons. There are 8 balloons in each box. He uses 12 balloons for a party. How many balloons has he left?

4 x 8 = 32 balloons. 32 - 12 = 20 balloons left.


A pizza was cut into 6 equal pieces. Alice ate 2/3 of the pizza and Carol ate 1/6 of it. What fraction of the pizza was eaten?


Write four thousand and fifteen in numeral. <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Four thousand = 4000, and fifteen = 15, so 4000 + 15 = 4015.


54 less than 67 hundreds is <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Find the value of (a) and (b).
Number of tricycles: 1, 2, 5, 7, 8, 10
Number of wheels: 3, 6, (a), 21, (b), 30
Answer: (a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />

Each tricycle has 3 wheels. (a) 5 x 3 = 15. (b) 8 x 3 = 24.


Arrange the following fractions in order. Begin with the smallest.
3/5, 4/10, 1/2
Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />, <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />, <input type="text" id="input_2" class="fill-blank-input" placeholder="?" />


What is the missing number in the box?
1/2 = <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />/6

To get from denominator 2 to 6, multiply by 3, so the numerator 1 x 3 = 3. 1/2 = 3/6.


2 boys cut a cake into 4 pieces. Eugene ate 1/4 of it. Michael ate 1/2 of it. How many pieces of the cake were left? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Cake has 4 pieces. Eugene ate 1/4 = 1 piece. Michael ate 1/2 = 2 pieces. 4 - 1 - 2 = 1 piece left.


3 children shared a bar of chocolate. Edwin ate \(\dfrac{5}{12}\) of it, Rayner ate \(\dfrac{1}{4}\) of it and Vincent ate the rest. What fraction of the chocolate did Vincent eat? Leave your answer in the simplest form.


(a) 4 m 50 cm = <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> cm
(b) 3 l 86 ml = <input type="text" id="input_1" class="fill-blank-input" placeholder="?" /> ml


At a school carnival, Nigel sold 1843 cookies. He sold 379 cookies fewer than Pauline.
(a) How many cookies did Pauline sell?
(b) How many cookies did they sell altogether? <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />


The school bookshop gives away 2 erasers for every 8 pencils bought. Mateen bought 96 pencils. How many erasers did he get? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

96 / 8 = 12 groups of 8 pencils. Each group gives 2 erasers, so 12 x 2 = 24 erasers.


The length of a field is 2 times its breadth. The perimeter of the field is 108 m. What is the length of the field? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Perimeter = 2(length + breadth) = length + breadth + length + breadth. With length = 2 x breadth, the perimeter equals 6 breadths: 108 / 6 = 18 m breadth. Length = 18 + 18 = 36 m.


The digit in 3985 is in the hundreds place.

In 3985, reading from the right: 5 ones, 8 tens, 9 hundreds, 3 thousands. So the digit in the hundreds place is 9.


The length of a square mat is 8 m. Find the area of the mat.

Area of a square = side x side = 8 m x 8 m = 64 m².


Raj took 2 hour 45 minutes to travel to his school. Gina took 50 minutes less to travel to her school. How long did Gina take to travel to her school?

2 h 45 min - 50 min. 45 min - 50 min needs borrowing: 1 h 105 min - 50 min = 1 h 55 min.


Write the missing number.
6198, <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />, 6218, 6228, 6238

The numbers increase by 10 each step: 6198, 6208, 6218, 6228, 6238. The missing number is 6208.


5492 = 5000 + <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> tens + 90 + 2


11.50 a.m. + 1 h 40 min = 1.30 p.m. (arrival). Class started 15 min later: 1.30 + 15 min = 1.45 p.m.


Let each start = x. After selling, rambutans = x, mangosteens = x - 810, and x = 3(x - 810). So x = 3x - 2430, 2430 = 2x, x = 1215.


537 / 8 = 67 remainder 1; wait, 8 x 67 = 536, remainder 1. The quotient is 67. Per the answer key the quotient given is 61.


Watch shows 12.20 p.m. but is 10 min fast, so actual arrival = 12.10 p.m. Subtract the 45 min travel: 12.10 p.m. - 45 min = 11.25 a.m.


340 / 9 = 37 remainder 7. The 7 leftover pies still need a box, so 37 + 1 = 38 boxes.


15 one-dollar coins = $15.00, leaving $5.80 in 14 coins (50c and 10c). If all 14 were 10c that is $1.40; the extra $4.40 comes from swapping 10c for 50c (each swap adds 40c): 440/40 = 11 fifty-cent coins.


In 9876, the digits from right to left are ones (6), tens (7), hundreds (8), thousands (9). So the thousands digit is 9.


An odd number ends in 1, 3, 5, 7 or 9. Only 2641 ends in 1, so it is odd.


The pattern decreases by 12 each time: 82, 70, 58, 46, 34, 22. So the missing number is 34.


A number divides by 5 with no remainder if it ends in 0 or 5. The numbers ending in 0 or 5 are 3530 and 3350. The smaller is 3350.


75 div 6 = 12 remainder 3. The 12 boats carry 72 children; the remaining 3 children need 1 more boat, so 13 boats are needed.


Q is smallest when P is largest. The largest 2-digit number is 99, so the smallest 3-digit Q is 200 - 99 = 101.


2 kg = 2000 g. Repacked into 4 equal bags: 2000 div 4 = 500 g each.


Between 5000 and 6000 the thousands digit must be 5. Arrange the remaining digits 1, 6, 9 in ascending order: 1, 6, 9. So the smallest number is 5169.


The greatest 4-digit number is 9999, but it is odd. The greatest 4-digit even number ends in an even digit, so 9998.


Total balloons = 6 x 40 = 240. Bunches = 240 div 3 = 80.


$5 = 500 cents. 500 cents div 10 coins = 50 cents per coin.


2 hours = 120 minutes. The first two compositions take the same time (call it t each); the third takes t + 30. So t + t + (t + 30) = 120, giving 3t + 30 = 120, 3t = 90, t = 30 minutes.


Iris took 3 out of 12 pieces = 3/12. Simplify by dividing top and bottom by 3: 3/12 = 1/4.


Giving away 20 cars changes the gap by 2 x 20 = 40 (Jack loses 20, Ken gains 20). After giving, Jack leads by 23, so at first the lead was 23 + 40 = 63 more cars.


In 1579, reading from the right: 9 ones, 7 tens, 5 hundreds, 1 thousand. So the digit 5 is in the hundreds place.


2/4, 3/6 and 6/12 all simplify to 1/2. 4/10 simplifies to 2/5, which is not 1/2.


The numbers increase by 15 each time: 1295 + 15 = 1310. Check: 1310 + 15 = 1325.


1 h 25 min = 85 min. 85 min - 40 min = 45 min.


908 / 5 = 181 remainder 3. The quotient is 181.


Same numerator: the smaller the denominator, the larger the fraction. So 5/6 > 5/7 > 5/9.


For every 3 paid + 1 free = 4 cookies. 12 cookies = 12 / 4 = 3 groups, so she paid for 3 x 3 = 9 cookies = 3 x $5.00 = $15.00.


a) At first = 216 + 13 = 229 oranges. b) Each box = 216 / 8 = 27 oranges.


4 sides x 7 = 28 counts, but the 4 corner trees are each counted twice, so 28 - 4 = 24. (Answer key: 5 x 4 = 20 non-corner-overlap, + 4 corners = 24.)


Total erasers = 6 x 24 = 144. Given away = 144 - 18 = 126.


3 times Amy = 3 x 78 = 234. June needs 234 - 42 = 192 more seashells.


9 m = 900 cm, plus 6 cm = 906 cm. Boon Huat is correct.


An odd sum needs one odd and one even number. 1719 (odd) + 2002 (even) = 3721, which is odd.


7 buses x 35 seats = 245 seats. 266 - 245 = 21 children without a seat.


Let Marcy = M. Jack = M+15, Porsha = M+25, Tabby = M+28. Tabby has the most (M+28).


Convert to tenths/twentieths: 7/10 = 0.7, 3/5 = 0.6, 1/4 = 0.25. Greatest to smallest: 7/10, 3/5, 1/4.


Flowers used = 183 x 7 = 1281. With 69 left over, she started with 1281 + 69 = 1350.


(a) Arrive 25 min before 5.35 p.m. = 5.10 p.m.; subtract 45 min travel = 4.25 p.m. (b) 5.35 p.m. to 6.45 p.m. = 1 h 10 min.


Difference = 2075 - 779 = 1296. Sue gives half, 1296 ÷ 2 = 648, to make them equal. Lina ends with 779 + 648 = 1427.


Guess-and-check: 8 two-dollar notes = $16 and 6 ten-dollar notes = $60; 8 + 6 = 14 notes and $16 + $60 = $76. So 8 two-dollar notes.


Difference used = 2500 - 960 = 1540 g, which equals 2 units (Ravi's 3 units minus Goh's 1 unit). 1 unit = 770 g, so Goh's leftover = 770 g. At first = 770 + 2500 = 3270 g = 3 kg 270 g.


In 5370 the value of 5 is 5000 and the value of 7 is 70. Difference = 5000 − 70 = 4930.


362 ÷ 5 = 72 remainder 2. The quotient is 72.


Kenneth's age now = 26 − 10 = 16. Michelle is 27, so she is 27 − 16 = 11 years older.


The smallest 3-digit odd number is 101. 101 ÷ 4 = 25 remainder 1.


a) One necklace uses 35 beads, so 2 necklaces need 35 × 2 = 70 beads. b) Before buying 42 she had 105 − 42 = 63; before making the necklace she had 63 + 35 = 98 beads at first.


813 is odd, so it is not divisible by 6 (a multiple of 6 must be even). 354, 432 and 768 are all even with digit sums divisible by 3.


Together they make 5 + 1 = 6 units = 162, so 1 unit (Rick) = 162 / 6 = 27. Billy = 5 x 27 = 135. (a) Billy made 135. (b) Rick made 27.


260 / 7 = 37 remainder 1. The leftover box has 1 pencil, so he needs 7 - 1 = 6 more pencils to make a complete box of 7.


English books = 361 × 6 = 2166. More English than Chinese = 2166 − 361 = 1805.


Kevin's 3 units minus 20 equals Peter's 1 unit, so 2 units = 20, 1 unit = 20 ÷ 2 = 10. Kevin = 3 × 10 = 30.


Let children = c, adults = 4c. After: 4c − 132 = c − 9, so 3c = 123, c = 41.


(a) 14 × 9 = 126 chairs. (b) 126 ÷ 7 = 18 chairs per row.


Eight 5s = 40. 40 = 4 × 10, so the missing number is 10.


Sean is 1 unit, Justin is 7 units, total 8 units = 392. 1 unit = 392 ÷ 8 = 49.


The two identical faces multiply to 49. 7 × 7 = 49, so each face = 7.


Greatest 4-digit even number from 0,3,4,9 is 9430. Smallest 4-digit odd number is 3049. 9430 - 3049 = 6381.


Total + difference = 2 × Tuesday: 300 + 44 = 344. Tuesday = 344 ÷ 2 = $172.


98 ÷ 8 = 12 remainder 2. To make an equal share he needs 8 - 2 = 6 more sweets.


They started equal. Sue's left - Tommy's left = the difference in spending = 403 - 152 = 251. Sue's left = 2 × Tommy's left, so Tommy's left = 251 and Sue's left = 502. (a) Tommy had $251 left. (b) Sue had 502 + 152 = $654 at first.


1/3 = 4/12 (multiply numerator and denominator by 4). The missing number is 12.


1/6 is smaller than 1/5 because with the same numerator, a larger denominator gives a smaller fraction. (Other answers such as 1/10 are also acceptable.)


Adele = 129 - 87 = 42 kg. Belle = 87 - 41 = 46 kg. Cali = 41 kg. Cali is the lightest at 41 kg.


With the same numerator, the larger the denominator the smaller the fraction. 2/7 < 2/5 < 2/3.


Watermelons at first = 145 - 6 = 139 kg. Sold = 139 - 26 = 113 kg.


333 + 999 = 1332. Digits: thousands 1, hundreds 3, tens 3, ones 2. Only the ones digit (2) is even.


520 cm, 5 m 20 cm and 500 cm + 20 cm all equal 520 cm. 5 m 2 cm = 502 cm, which is different.


Odd means the ones digit must be odd. Smallest uses smallest leading digits: 1, 3, 6 then odd ones digit 5 → 1365.


Hundreds value 300 → hundreds digit 3. Tens is 8 less than thousands; thousands = ones. Thousands 8, tens 0, ones 8 → 8308.


1/3 = 3/9. Comparing: 2/9 < 3/9, while 1/2 and 5/6 are larger than 1/3. So 2/9 is smaller than 1/3.


Total cupcakes = 9 × 28 = 252. Per container = 252 ÷ 4 = 63.


203 cm = 200 cm + 3 cm = 2 m 3 cm. The other conversions are wrong.


Same denominator (9), so order by numerator: 1 < 3 < 4. Smallest to greatest: 1/9, 3/9, 4/9.


Bananas = 1 unit, apples = 4 units, total = 5 units = 20. So 1 unit = 20 ÷ 5 = 4 bananas.


Kelly at first = 30 - 5 = 25 stamps. Mandy had the same, so total = 25 + 25 = 50 stamps.


Compare thousands first: 3 797 and 3 977 (three thousands) come before 7 397 and 7 937. Then compare the rest: 3 797 < 3 977 and 7 397 < 7 937.


Greatest odd number must end in an odd digit. To be greatest, put 5 then 4 then 0 in front and end in the odd 3: 5403.


The pattern increases by 49 each time. 3657 + 49 = 3706 (and 3706 + 49 = 3755).


12.01 a.m. is one minute after midnight, written as 00 01 in 24-hour clock.


5167 ends in 7, so it is odd, not even: (a) is false. The thousands digit 5 has value 5000, not 1000: (b) is false. Both false.


The 80 extra equals 2 of Alex's units (3 units − 1 unit), so 1 unit = 80 ÷ 2 = 40 (Alex). Altogether = 4 units = 4 × 40 = 160.


(a) 1500 − 992 = 508 children. (b) Men = women = 992 ÷ 2 = 496. At end men (496) = 4 × women left = women remaining = 496 ÷ 4 = 124. Women who left = 496 − 124 = 372.


Even numbers end in 0,2,4,6,8. Even options are 2392 and 2930; the smaller is 2392.


They started equal. Giving away 47 makes Derrick 47 fewer and Evan 47 more, so the gap is 47 + 47 = 94 stickers.


Let Joyce = 1 unit. Mary = 2 units, Laura = 3 x Mary = 6 units. Laura - Joyce = 6 - 1 = 5 units = 405, so 1 unit = 81. Mary = 2 x 81 = 162.


In 7509: 7 thousands, 5 hundreds, 0 tens, 9 ones. The 0 is in the tens place.


In 4960, reading right to left: 0 ones, 6 tens, 9 hundreds, 4 thousands. So 9 is in the hundreds place.


Odd numbers end in an odd digit. 9750 and 9778 are even. Of the odd ones (9639, 9643), 9643 is greater.


5 × 4 means four groups of 5 (or 5 groups of 4) = 20. 5 + 5 + 5 + 5 = 20.


Multiply numerator and denominator by 4: 2/3 = (2×4)/(3×4) = 8/12. Missing numerator is 8.


108 ÷ 8 = 13 remainder 4. So 4 cupcakes were left unpacked.


Each transfer of 16 widens the gap by 2 × 16 = 32. New difference = 35 + 32 = 67.


Greater = 7 units, smaller = 1 unit; difference 6 units = 546, so 1 unit = 91. Greater = 7 × 91 = 637.


a) Total = 5 units = 120, so Kathy (1 unit) = 120 ÷ 5 = 24. b) 120 ÷ 9 = 13 R 3, so 3 left unpacked.


Male teachers = male students = 26. a) 26 − 15 = 11 more male than female teachers. b) Teachers = 26 + 15 = 41; students = 41 + 98 = 139.


8 x 6 = 48. The missing number ÷ 2 = 48, so the number is 48 x 2 = 96.


5/6 is more than half (3/6), so 5/6 > 1/2 is true. The other statements are false.


23 25 in 24-hour clock is after noon. 23 - 12 = 11, so it is 11.25 pm.


280 ÷ 6 = 46 remainder 4. So 4 apples are left unpacked.


The last packet split among 12 pupils at 7 each = 12 x 7 = 84 sweets per packet. Each pupil got one full packet (84) plus 7 = 91 sweets.


Total stays 80. After giving, Ali = 4 units, Samad = 1 unit, 5 units = 80, 1 unit = 16. Samad had 16 in the end.


760 / 7 = 108 remainder 4. The quotient is 108.


Multiply 2/3 by 3/3: (2x3)/(3x3) = 6/9. So 6/9 is equivalent to 2/3.


Morning: 9:00 am to 12:30 pm = 3 h 30 min. Afternoon: 3:30 pm to 8:00 pm = 4 h 30 min. Total = 3 h 30 min + 4 h 30 min = 8 h.


Convert to a common unit: 1 m 20 cm = 1.2 m, 1 km 2 m = 1002 m, 120 m. Longest to shortest: 1 km 2 m, 120 m, 1 m 20 cm.


The pattern decreases by 120 each time. 6880 - 120 = 6760.


438 / 4 = 109 remainder 2. The leftover 2 cupcakes still need a box, so she needs 109 + 1 = 110 boxes.


One crate has 30 + 25 = 55 fruits. 6 crates have 55 x 6 = 330 fruits.


Twice the smaller number = 3764 - 132 = 3632, so smaller = 1816. Greater = 1816 + 132 = 1948.


Work backwards: before 7 boarded, there were 24 - 7 = 17. Before 9 alighted, there were 17 + 9 = 26 people.


Chocolate is 9 units, strawberry is 1 unit, so the difference of 8 units = 240. 1 unit = 30 strawberry tarts. Total = 10 units = 30 x 10 = 300 tarts.


Blue + green = 482 - 42 = 440. Blue is 3 units and green is 1 unit, so 4 units = 440, 1 unit = 110. Blue = 3 x 110 = 330.


Each bag has 432 / 6 = 72 pears. He gave away 2 bags = 72 x 2 = 144 pears. Left = 432 - 144 = 288.


Subtract the travel time from the arrival time: 7.10 a.m. - 35 min = 6.35 a.m.


One dress = 175 + 25 = 200 cm. Two dresses = 200 x 2 = 400 cm.


7 thousands = 7000, 9 hundreds = 900, 0 tens, 4 ones = 4. Total = 7904.


2 l = 2000 ml. Water still needed = 2000 - 1400 = 600 ml. 3 jugs fill 600 ml, so each jug = 600 / 3 = 200 ml.


12 classmates took 12 muffins. Remaining muffins = 60 - 12 = 48. These were taken 2 each, so 48 / 2 = 24 classmates.


97 / 8 = 12 remainder 1. The remaining person still needs a van, so 12 + 1 = 13 vans.


1 orange = 2 apples in cost, so 6 oranges = 12 apples. Total = 12 + 8 = 20 apples.


Assume all 50 are notebooks: 50 x $5 = $250. Excess = $250 - $154 = $96. Each notebook swapped for scissors saves $5 - $2 = $3, so $96 / $3 = 32 notebooks; scissors = 50 - 32 = 18. (a) 18 scissors, (b) 32 notebooks.


12/15 = 4/5 (divide numerator and denominator by 3). Missing numerator is 4.


After giving away 7, Peter has 40 - 7 = 33, and Monica also has 33. Monica at first = 33 - 7 = 26.


Oranges in boxes = 165 x 9 = 1485. Add the 3 left over: 1485 + 3 = 1488.


Lunch box $25, water bottle $25+$8=$33, bag $25x2=$50. The bag costs the most at $50. Total = $25+$33+$50 = $108.


2/3 = 6/9, so 6/9 - 3/9 = 3/9 = 1/3. The key marks option (3) 1/9; note the simplest correct value is 1/3.


58 ÷ 3 = 19 remainder 1. The quotient is 19.


In 8371 the digits are 8 (thousands), 3 (hundreds), 7 (tens), 1 (ones). So 3 is in the hundreds place.


4 x 8 = 32 balloons. 32 - 12 = 20 balloons left.


Each tricycle has 3 wheels. (a) 5 x 3 = 15. (b) 8 x 3 = 24.


To get from denominator 2 to 6, multiply by 3, so the numerator 1 x 3 = 3. 1/2 = 3/6.


Cake has 4 pieces. Eugene ate 1/4 = 1 piece. Michael ate 1/2 = 2 pieces. 4 - 1 - 2 = 1 piece left.


96 / 8 = 12 groups of 8 pencils. Each group gives 2 erasers, so 12 x 2 = 24 erasers.


Perimeter = 2(length + breadth) = length + breadth + length + breadth. With length = 2 x breadth, the perimeter equals 6 breadths: 108 / 6 = 18 m breadth. Length = 18 + 18 = 36 m.


In 3985, reading from the right: 5 ones, 8 tens, 9 hundreds, 3 thousands. So the digit in the hundreds place is 9.


2 h 45 min - 50 min. 45 min - 50 min needs borrowing: 1 h 105 min - 50 min = 1 h 55 min.


The numbers increase by 10 each step: 6198, 6208, 6218, 6228, 6238. The missing number is 6208.


Arrange the following fractions from the greatest to the smallest.
2/3 , 2/6 , 3/4 <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />   (c) <input type="text" id="input_2" class="fill-blank-input" placeholder="?" />


Jennifer gave away \(\dfrac{1}{2}\) of a cake and ate \(\dfrac{1}{3}\) of it. What fraction of the cake was left?


There were 420 audience at a concert. There were 4 times as many adults as children. How many children were at the concert? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Children = 1 unit, adults = 4 units, total = 5 units = 420. 1 unit = 420 / 5 = 84 children.


Natalie started watching a show at 1615. The show lasted 1 h 55 min. What time did the show end? Give your answer in the 24 hour clock. <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


The length of a blue ribbon is 1 m 20 cm longer than a red ribbon. Given that the total length of both ribbons is 4 m, how long is the red ribbon? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Total = 4 m = 400 cm. The extra 1 m 20 cm = 120 cm. Removing the extra: 400 - 120 = 280 cm for two equal parts. Red ribbon = 280 / 2 = 140 cm.


Geraldine wants to pack 260 colour pencils into bags. Each bag can hold up to 6 colour pencils. What is the smallest number of bags needed to pack all the colour pencils? <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

260 / 6 = 43 remainder 2. The 2 leftover pencils still need a bag, so 43 + 1 = 44 bags.


Alfred and Bala had an equal number of marbles at first. After Alfred gave Bala 12 marbles, Alfred had 65 marbles left.
(a) How many more marbles did Bala have than Alfred in the end?
(b) How many marbles did Bala have in the end? <br>(a) <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />   (b) <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />

(a) Alfred lost 12 and Bala gained 12, so the difference between them is 12 + 12 = 24 marbles. (b) Alfred had 65 at the end; at first both had 65 + 12 = 77. Bala in the end = 77 + 12 = 89.


There were 16 boys and 26 girls in a class. Each pupil was given 8 erasers. How many erasers were given out altogether?

Total pupils = 16 + 26 = 42; 42 x 8 = 336 erasers.


Mrs Wong had 148 pencils. She packed them equally into 6 boxes. How many pencils were left unpacked?

148 / 6 = 24 remainder 4. So 4 pencils were left unpacked.


Janet had 3 twenty-cent coins and 5 fifty-cent coins. She donated some of the coins. How much money could she possibly have donated?

Coins are 20c and 50c. $2.70 = 1 twenty-cent + 5 fifty-cent (20c + 250c = 270c). $3.00 needs more than she has (max = 60c + 250c = 310c, but cannot make exactly 300c with these coins), $0.80 and $1.80 cannot be formed exactly; $2.70 is achievable.


A bottle contains 1 l 80 ml of water. If the capacity of the bottle is 2 l, how much more water is needed to fill the bottle?


Which one of the following fractions is the smallest?


A movie started at 18 30. It lasted 115 minutes. What time did the movie end?


James had 3 times as many erasers as Max at first. After James had given 18 erasers to Max, Max had 44 erasers. How many erasers did James have at first?

After receiving 18, Max had 44, so Max had 44 - 18 = 26 at first. James had 3 x 26 = 78 at first.


Which digit in the two numbers given has the same value? 2856 and 6825 <br>Answer: <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

In 2856 the digit 8 is in the hundreds place (value 800). In 6825 the digit 8 is in the hundreds place (value 800). The digit 8 has the same value in both.


Find the difference between 6483 and 259. <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />


Arrange the following fractions in order. Begin with the greatest. 1/3, 5/6, 5/12 <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />, <input type="text" id="input_1" class="fill-blank-input" placeholder="?" />, <input type="text" id="input_2" class="fill-blank-input" placeholder="?" />


Gary went jogging from 6:20 a.m. to 7:15 a.m. How long did he jog? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" /> min

From 6:20 a.m. to 7:15 a.m. is 55 minutes (6:20 to 7:20 is 60 min, minus 5 min = 55 min).


Jamie and Angel had a total of 135 hairclips. If Angel were to give Jamie 16 hairclips, Jamie would have 4 times as many hairclips as Angel. How many hairclips did Angel have? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Total stays 135. After transfer: 5 units = 135, 1 unit = 27 (Angel after giving). Angel originally = 27 + 16 = 43.


Mrs Tan is 5 times as old as her son, Bryan, who is 9 years old now. How old will Mrs Tan be in 10 years' time? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Mrs Tan now = 5 x 9 = 45 years old. In 10 years: 45 + 10 = 55 years old.


Keith had some sweets. He gave 24 of his sweets to his brother and bought another 12 sweets. In the end, Keith had 88 sweets altogether. How many sweets did he have at first? <input type="text" id="input_0" class="fill-blank-input" placeholder="?" />

Work backwards: 88 - 12 = 76 (before buying); 76 + 24 = 100 (before giving away).