=== QID:14915 type:2 === Exp: 3797 Q: Arrange the following numbers from the smallest to the greatest. 7937, 3797, 7397, 3977 , 3797 and 3977 start with 3; 3797 < 3977.
7397 and 7937 start with 7; 7397 < 7937.
Order: 3797, 3977, 7397, 7937. === QID:14922 type:2 === Exp: 1083 Q: Form the smallest 4-digit odd number using all the digits 3 , 1 , 0 , 8. [?] S: An odd number must end in an odd digit (1 or 3).
To be smallest, the leading digit must be as small as possible but not 0, so use 1 first.
Remaining digits 0, 8, 3 arranged smallest with an odd units digit: 0, 8, then 3 (odd) -> 1083. === QID:14931 type:2 === Exp: 48 Q: Haron and Bala have 192 stamps altogether. Bala has 3 times as many stamps as Haron. How many stamps does Haron have? [?] S: Haron is 1 unit, Bala is 3 units, total 4 units = 192.
1 unit = 192 / 4 = 48.
Haron has 48 stamps. === QID:14937 type:1 === Exp: 72 Q: Which of the following leaves no remainder when divided by 4? S: 72 / 4 = 18 exactly, no remainder.
14, 46 and 58 all leave a remainder when divided by 4. === QID:14945 type:1 === Exp: $1200 Q: Mrs Lim had some money. She gave $\$758$ to her son. She received $\$1479$ from her husband. In the end, she had $\$1921$. How much money did she have at first? S: Work backwards: $\$1921$ - $\$1479$ (received) + $\$758$ (gave away) = $\$1200$. === QID:14952 type:2 === Exp: 1 Q: Mr Tan started baking lemon tarts at 14 35.
He finished baking at 16 20.
How long did Mr Tan take to bake the lemon tarts? S: From 14 35 to 15 35 is 1 h.
From 15 35 to 16 20 is 45 min.
Total = 1 h 45 min. === QID:14960 type:2 === Exp: 446 Q: There were 2560 visitors in Bird Paradise. There were 1756 adults and the rest of the visitors were children. Among the children, there were 358 boys. How many girls were there in Bird Paradise? [?] S: Children = 2560 - 1756 = 804.
Girls = 804 - 358 = 446. === QID:14971 type:1 === Exp: 345 Q: Gary had some stamps.
After he bought another 39 stamps, he had 8 times as many stamps as his sister.
His sister had 48 stamps.
How many stamps did Gary have at first? S: After buying, Gary had 8 × 48 = 384 stamps.
At first he had 384 − 39 = 345 stamps.
The answer is 345. === QID:14978 type:1 === Exp: 21 toys were sold in April is False; 10 more in May than June is True. Q: The bar graph shows the number of toys sold by a shop from March to June.
Which statement is correct? S: From the graph: March 28, April 20, May 40, June 30.
(a) 21 sold in April is FALSE (20 were sold).
(b) 10 more in May than June: 40 − 30 = 10, so TRUE.
The answer is: (a) False, (b) True. === QID:14985 type:2 === Exp: 84 Q: A factory produces 112 cartons of juice every day.
Each carton contains 6 packets of juice.
The packets are then packed equally into 8 delivery boxes.
How many packets of juice are in each de S: Total packets = 112 × 6 = 672.
Packets per box = 672 ÷ 8 = 84.
Each delivery box holds 84 packets. === QID:14995 type:1 === Exp: 20 cm Q: The length of the rectangle is 6 cm and the breadth is 4 cm.
What is the perimeter of the rectangle? S: Perimeter of a rectangle = 2 × (length + breadth) = 2 × (6 + 4) = 2 × 10 = 20 cm.
Answer: 20 cm. === QID:15004 type:2 === Exp: 12 Q: The bar graph shows the number of students who chose their favourite colour.
48 more girls than boys chose red.
How many more boys than girls chose yellow as their favourite colour? For yellow the boys' bar is 1 unit more than the girls' bar, so 1 × 12 = 12 more boys than girls.
Answer: 12. === QID:15010 type:2 === Exp: 1 km 68 m Q: Study the map.
What is the distance from the library to the school in km and m? kg g S: 1 kg = 1000 g.
6035 g = 6000 g + 35 g = 6 kg 35 g. === QID:15034 type:2 === Exp: 230 Q: Mdm Wong took 6 classes of pupils to the zoo. She gave each pupil a packet of milk. There were 35 pupils in one of the classes and 39 pupils in each of the remaining classes. How many packets of milk S: Remaining classes = 6 - 1 = 5 classes of 39 pupils = 39 x 5 = 195.
Add the class of 35: 195 + 35 = 230 packets. === QID:15044 type:2 === Exp: 96 Q: Trees are planted at an equal distance apart along a road.
The distance between the 1st and the 4th tree is 24 m.
Find the distance between the 3rd tree and the 15th tree. From the 3rd to the 15th tree there are 15 - 3 = 12 gaps.
Distance = 12 x 8 = 96 m. === QID:15051 type:1 === Exp: 4 kg 800 g Q: Find the mass of the 2 boxes of detergent. S: The weighing scale is marked 0 to 8 kg.
Each big division is 1 kg and is split into 5 small marks of 200 g each.
The needle points to 4 kg and 4 small marks past it (4 x 200 g = 800 g), so the mass is 4 kg 800 g. === QID:15060 type:2 === Exp: 14 Q: The figure is made up of 1-cm squares. Find the area of the figure. [?] S: Count the shaded unit squares and half-squares.
There are 12 full 1-cm squares plus 4 half-square triangles.
The 4 half-squares equal 2 full squares...
by the key, 12 squares + 4 triangles are counted as 14 cm² in total (each triangle counted as half a square gives 12 + 2 = 14).
Area = 14 cm². === QID:15067 type:2 === Exp: 1840 Q: Mrs Wong used some flour to bake cookies and muffins. She used 1200 g to bake the muffins. She used 560 g less flour to bake the cookies than muffins. How much flour did she use altogether? [?] S: Flour for cookies = 1200 g - 560 g = 640 g.
Total flour = 1200 g + 640 g = 1840 g. === QID:15074 type:1 === Exp: 15 40 Q: Julia started her music lesson at 13 55.
Her music lesson lasted for 1 hour 45 minutes.
What time did her music lesson end? S: 13 55 + 1 h = 14 55.
Then 14 55 + 45 min: 14 55 + 5 min = 15 00, plus 40 min more = 15 40. === QID:15084 type:2 === Exp: 1 Q: George reached the library at 15 45.
He left the library at 17 20.
How long was he at the library? h From 16 45 to 17 20 is 35 minutes.
Total = 1 h 35 min. === QID:15090 type:2 === Exp: 880 Q: Jane wanted to run 2 km 80 m. She completed 3 rounds on a running track. Each round is 400 m. How much further did she have to run? Give your answer in m. [?] S: 3 rounds = 400 x 3 = 1200 m run.
Target = 2 km 80 m = 2080 m.
Remaining = 2080 - 1200 = 880 m. === QID:15098 type:1 === Exp: 3951 Q: Complete the number pattern. 1851 , 2551 , 3251 , , 4651 , 5351 S: Each term increases by 700 (1851, 2551, 3251...).
3251 + 700 = 3951, then 4651, 5351. === QID:15107 type:2 === Exp: 5210 Q: Find the sum of 4283 and 927 S: Sum means add: 4283 + 927 = 5210.