{
  "paper": {
    "school": "Red Swastika",
    "year": 2022,
    "level": "P3",
    "label": "Weighted Assessment 1",
    "source_prefix": "Red Swastika 2022 P3 Weighted Assessment 1",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "What is the value of the digit 4 in 9674?",
      "answer0": "4000",
      "answer1": "400",
      "answer2": "40",
      "answer3": "4",
      "correct_answer": 3,
      "skill_id": 66,
      "difficulty_id": 1,
      "explanation": "In 9674 the digit 4 is in the ones place, so its value is 4.",
      "hints": ["Identify which place the digit 4 sits in.", "9674: the last digit is the ones place."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": ""
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "Which of the following is six thousand, two hundred and twelve in numerals?",
      "answer0": "6012",
      "answer1": "6200",
      "answer2": "6212",
      "answer3": "6220",
      "correct_answer": 2,
      "skill_id": 67,
      "difficulty_id": 1,
      "explanation": "Six thousand (6000) + two hundred (200) + twelve (12) = 6212.",
      "hints": ["Break the words into thousands, hundreds and the rest.", "6000 + 200 + 12."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": ""
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "Arrange the following numbers in order, beginning with the greatest.\n\n8909, 989, 9098, 899",
      "answer0": "899, 989, 8909, 9098",
      "answer1": "9098, 8909, 989, 899",
      "answer2": "8909, 9098, 989, 899",
      "answer3": "9098, 8909, 899, 989",
      "correct_answer": 1,
      "skill_id": 68,
      "difficulty_id": 2,
      "explanation": "Greatest to least: 9098, 8909, 989, 899.",
      "hints": ["Compare by number of digits first, then leading digits.", "9098 > 8909 > 989 > 899."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q3",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": ""
    },
    {
      "n": 4,
      "type_id": 1,
      "question": "What is the value of 2000 - 384?",
      "answer0": "1616",
      "answer1": "1384",
      "answer2": "1726",
      "answer3": "2384",
      "correct_answer": 0,
      "skill_id": 70,
      "difficulty_id": 1,
      "explanation": "2000 - 384 = 1616.",
      "hints": ["Subtract with regrouping.", "2000 - 400 = 1600, then add back 16."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q4",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": ""
    },
    {
      "n": 5,
      "type_id": 1,
      "question": "In the sum of 333 and 999, the digit in the _____ place is an even number.",
      "answer0": "ones",
      "answer1": "tens",
      "answer2": "hundreds",
      "answer3": "thousands",
      "correct_answer": 0,
      "skill_id": 70,
      "difficulty_id": 2,
      "explanation": "333 + 999 = 1332. Digits: thousands 1, hundreds 3, tens 3, ones 2. Only the ones digit (2) is even.",
      "hints": ["First add 333 + 999.", "Check each place value of the sum for an even digit."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q5",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": ""
    },
    {
      "n": 6,
      "type_id": 1,
      "question": "[?] × [?] = 64\nWhat is the value of [?] ?",
      "answer0": "6",
      "answer1": "7",
      "answer2": "8",
      "answer3": "9",
      "correct_answer": 2,
      "skill_id": 73,
      "difficulty_id": 1,
      "explanation": "The two identical smiley faces multiply to 64, so each is 8 (8 × 8 = 64).",
      "hints": ["Both faces stand for the same number.", "What number times itself gives 64?"],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q6",
      "image_needed": true,
      "image_options": false,
      "image_file": "q6.png",
      "image_page": 2,
      "image_loc": "upper area of page, the equation 'face × face = 64' with the same smiley-face symbol used as the unknown",
      "notes": "Original uses identical smiley-face pictures as the unknown; the equation is picture-based so a figure is needed. Answer: each face = 8."
    },
    {
      "n": 7,
      "type_id": 1,
      "question": "What is the remainder when 886 is divided by 6?",
      "answer0": "1",
      "answer1": "2",
      "answer2": "3",
      "answer3": "4",
      "correct_answer": 3,
      "skill_id": 74,
      "difficulty_id": 2,
      "explanation": "886 ÷ 6 = 147 remainder 4 (147 × 6 = 882, 886 - 882 = 4).",
      "hints": ["Find the largest multiple of 6 not exceeding 886.", "147 × 6 = 882."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q7",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": ""
    },
    {
      "n": 8,
      "type_id": 1,
      "question": "Which of the following does not have the same measurement as the rest?",
      "answer0": "520 cm",
      "answer1": "5 m 2 cm",
      "answer2": "5 m 20 cm",
      "answer3": "500 cm + 20 cm",
      "correct_answer": 1,
      "skill_id": 86,
      "difficulty_id": 2,
      "explanation": "520 cm, 5 m 20 cm and 500 cm + 20 cm all equal 520 cm. 5 m 2 cm = 502 cm, which is different.",
      "hints": ["Convert everything to centimetres (1 m = 100 cm).", "5 m 2 cm is only 502 cm."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q8",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": ""
    },
    {
      "n": 9,
      "type_id": 1,
      "question": "How many minutes are there from 3.55 p.m. to 4.20 p.m.?",
      "answer0": "20 minutes",
      "answer1": "25 minutes",
      "answer2": "35 minutes",
      "answer3": "55 minutes",
      "correct_answer": 1,
      "skill_id": 92,
      "difficulty_id": 1,
      "explanation": "From 3.55 p.m. to 4.00 p.m. is 5 minutes, then 4.00 to 4.20 is 20 minutes; 5 + 20 = 25 minutes.",
      "hints": ["Count up to the next hour first.", "3.55 to 4.00 is 5 min; 4.00 to 4.20 is 20 min."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q9",
      "image_needed": true,
      "image_options": false,
      "image_file": "q9.png",
      "image_page": 3,
      "image_loc": "top of page, two clock faces with an arrow between them showing 3.55 and 4.20",
      "notes": "Two clock faces illustrate the start and end times. Figure decorative; times are stated in the stem."
    },
    {
      "n": 10,
      "type_id": 1,
      "question": "Xiaomin only had the following five coins in her purse. She donated two coins from her purse to charity during Children's Day. Which of the following amounts could she have donated?",
      "answer0": "35 ¢",
      "answer1": "80 ¢",
      "answer2": "$1.15",
      "answer3": "$1.20",
      "correct_answer": 3,
      "skill_id": 82,
      "difficulty_id": 3,
      "explanation": "Coins shown are $1, 50¢, 20¢, 10¢ and 5¢. The sum of two coins giving an option: $1 + 20¢ = $1.20.",
      "hints": ["First read the five coin values from the picture.", "Try adding pairs of the coins to match an option."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q10",
      "image_needed": true,
      "image_options": false,
      "image_file": "q10.png",
      "image_page": 3,
      "image_loc": "middle of page, a row of five coin photographs",
      "notes": "Five coins pictured ($1, 50c, 20c, 10c, 5c). Coin values must be read from the figure; answer $1.20 = $1 + 20c."
    },
    {
      "n": 11,
      "type_id": 1,
      "question": "How much more does the teddy bear cost than the toy train?",
      "answer0": "$3.90",
      "answer1": "$4.10",
      "answer2": "$4.65",
      "answer3": "$5.45",
      "correct_answer": 2,
      "skill_id": 83,
      "difficulty_id": 1,
      "explanation": "Teddy bear $22.55 - toy train $17.90 = $4.65.",
      "hints": ["Find the price of each from the picture.", "$22.55 - $17.90."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q11",
      "image_needed": true,
      "image_options": false,
      "image_file": "q11.png",
      "image_page": 4,
      "image_loc": "upper half of page, six labelled toy pictures with prices (toy train $17.90, teddy bear $22.55, kite $3.25, toy car $18.65, toy robot $12.30, Rubik's cube $5.50)",
      "notes": "Prices come from the figure; only teddy bear ($22.55) and toy train ($17.90) are needed."
    },
    {
      "n": 12,
      "type_id": 1,
      "question": "Which of the following shapes has both perpendicular and parallel lines?",
      "answer0": "Shape 1",
      "answer1": "Shape 2",
      "answer2": "Shape 3",
      "answer3": "Shape 4",
      "correct_answer": 3,
      "skill_id": 100,
      "difficulty_id": 2,
      "explanation": "The arrow (pentagon) shape has a pair of parallel sides and a pair of perpendicular sides; the trapezium, triangle and rhombus do not have both.",
      "hints": ["Look for one pair of parallel lines AND a right angle.", "Examine the arrow-shaped figure."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q12",
      "image_needed": true,
      "image_options": true,
      "image_file": null,
      "image_page": 4,
      "image_loc": "lower half of page, four option shapes listed vertically: (1) trapezium, (2) right triangle, (3) rhombus, (4) upward arrow",
      "notes": "Image-option MCQ: the four options are shapes. Crop each option to q12_opt0..q12_opt3. Correct = option 4 (arrow)."
    },
    {
      "n": 13,
      "type_id": 1,
      "question": "Find the area of the rectangle.",
      "answer0": "15 cm²",
      "answer1": "30 cm²",
      "answer2": "56 cm²",
      "answer3": "64 cm²",
      "correct_answer": 2,
      "skill_id": 97,
      "difficulty_id": 1,
      "explanation": "Area = length × breadth = 8 cm × 7 cm = 56 cm².",
      "hints": ["Area of a rectangle = length × breadth.", "8 × 7."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q13",
      "image_needed": true,
      "image_options": false,
      "image_file": "q13.png",
      "image_page": 5,
      "image_loc": "top of page, a rectangle labelled 8 cm (top) and 7 cm (right side)",
      "notes": "Dimensions 8 cm and 7 cm are labelled on the figure."
    },
    {
      "n": 14,
      "type_id": 1,
      "question": "What fraction of the rectangle ABCD is shaded?",
      "answer0": "4/6",
      "answer1": "4/8",
      "answer2": "4/10",
      "answer3": "6/10",
      "correct_answer": 2,
      "skill_id": 78,
      "difficulty_id": 2,
      "explanation": "The rectangle is divided into 10 equal parts and 4 are shaded, giving 4/10.",
      "hints": ["Count the total equal parts.", "Count how many parts are shaded."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q14",
      "image_needed": true,
      "image_options": false,
      "image_file": "q14.png",
      "image_page": 5,
      "image_loc": "middle of page, rectangle ABCD split into a 2-by-5 grid with 4 shaded cells in a checker arrangement",
      "notes": "Shaded-parts count (4 of 10) must be read from the figure."
    },
    {
      "n": 15,
      "type_id": 1,
      "question": "In the number line below, A represents 5/8, C represents 7/8. What fraction is represented by B, given that B is exactly between A and C?",
      "answer0": "1/4",
      "answer1": "1/2",
      "answer2": "3/4",
      "answer3": "6/16",
      "correct_answer": 2,
      "skill_id": 78,
      "difficulty_id": 2,
      "explanation": "Midway between 5/8 and 7/8 is 6/8 = 3/4.",
      "hints": ["The midpoint value is the average of 5/8 and 7/8.", "(5/8 + 7/8) ÷ 2 = 6/8."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q15",
      "image_needed": true,
      "image_options": false,
      "image_file": "q15.png",
      "image_page": 5,
      "image_loc": "lower part of page, a number line with points A (5/8), B and C (7/8) marked",
      "notes": "Number line shows positions of A, B, C. B = 6/8 = 3/4."
    },
    {
      "n": 16,
      "type_id": 1,
      "question": "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?",
      "answer0": "8",
      "answer1": "2",
      "answer2": "6",
      "answer3": "4",
      "correct_answer": 3,
      "skill_id": 74,
      "difficulty_id": 2,
      "explanation": "A remainder of 4 means it is 4 short of the next multiple of 8, so adding 4 makes it exactly divisible by 8.",
      "hints": ["How far is a remainder of 4 from a full group of 8?", "8 - 4 = 4."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q16",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": ""
    },
    {
      "n": 17,
      "type_id": 1,
      "question": "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?",
      "answer0": "Adam",
      "answer1": "Bobby",
      "answer2": "Caden",
      "answer3": "Dennis",
      "correct_answer": 2,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "Adam is least; Dennis < Bobby < Caden, so Caden collected the most.",
      "hints": ["Order them from least to most.", "Caden is greater than Bobby, who is greater than Dennis."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q17",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": ""
    },
    {
      "n": 18,
      "type_id": 1,
      "question": "Which of the following is likely to be the total mass of 10 eggs?",
      "answer0": "4 g",
      "answer1": "4 kg",
      "answer2": "400 g",
      "answer3": "400 kg",
      "correct_answer": 2,
      "skill_id": 84,
      "difficulty_id": 2,
      "explanation": "One egg is about 40 g, so 10 eggs is about 400 g.",
      "hints": ["Estimate the mass of one egg.", "Roughly 40 g each × 10."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q18",
      "image_needed": true,
      "image_options": false,
      "image_file": "q18.png",
      "image_page": 6,
      "image_loc": "right of the question, a photo of a carton/tray of eggs",
      "notes": "Egg-tray picture is decorative; answer 400 g."
    },
    {
      "n": 19,
      "type_id": 1,
      "question": "What are the missing digits in the boxes?\n\n[ ] 3 8 2 - 2 8 [ ] 9 = 1 5 4 3",
      "answer0": "3382, 28 3 9",
      "answer1": "3382, 28 4 9",
      "answer2": "4382, 28 3 9",
      "answer3": "4382, 28 4 9",
      "correct_answer": 2,
      "skill_id": 70,
      "difficulty_id": 3,
      "explanation": "4382 - 2839 = 1543, so the first box is 4 and the second box is 3.",
      "hints": ["Work out the subtraction column by column.", "The thousands box plus the result gives the minuend."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q19",
      "image_needed": true,
      "image_options": false,
      "image_file": "q19.png",
      "image_page": 6,
      "image_loc": "middle of page, a column subtraction layout with two empty boxes",
      "notes": "Subtraction shown as a vertical layout with boxed blanks. Options are text; correct = option (3) 4382 - 2839 = 1543."
    },
    {
      "n": 20,
      "type_id": 1,
      "question": "Chris used stickers of four different shapes to make a pattern. The first 8 stickers are shown. What was the shape of the 36th sticker?",
      "answer0": "Smiley face",
      "answer1": "Heart",
      "answer2": "Sun",
      "answer3": "Star",
      "correct_answer": 3,
      "skill_id": 69,
      "difficulty_id": 2,
      "explanation": "The pattern repeats every 4 stickers (smiley, heart, sun, star). 36 ÷ 4 = 9 exactly, so the 36th is the 4th in the cycle: the star.",
      "hints": ["The four shapes repeat in a fixed order.", "36 ÷ 4 leaves no remainder, so it is the last shape in the cycle."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q20",
      "image_needed": true,
      "image_options": true,
      "image_file": null,
      "image_page": 7,
      "image_loc": "top of page, a row of the first 8 pattern stickers (smiley, heart, sun, star repeating); four option pictures below",
      "notes": "Image-option MCQ: options are shape pictures. Crop the pattern strip plus each option q20_opt0..q20_opt3. Repeat unit = smiley, heart, sun, star; 36th = star (option 4)."
    },
    {
      "n": 21,
      "type_id": 2,
      "question": "Write the number that is represented by the diagram.\n\nAns: [?]",
      "answer0": "4026",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 66,
      "difficulty_id": 1,
      "explanation": "Four 1000-discs, two 10-discs and six 1-discs: 4000 + 20 + 6 = 4026.",
      "hints": ["Count discs of each place value.", "4 thousands, 2 tens, 6 ones."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q21",
      "image_needed": true,
      "image_options": false,
      "image_file": "q21.png",
      "image_page": 9,
      "image_loc": "upper-left of page, place-value discs: four '1000' discs, two '10' discs and six '1' discs",
      "notes": "Disc counts (four 1000s, two 10s, six 1s) must be read from the figure. Answer 4026."
    },
    {
      "n": 22,
      "type_id": 2,
      "question": "[?] × [?] = [?]",
      "answer0": "422",
      "answer1": "3",
      "answer2": "1266",
      "correct_answer": null,
      "skill_id": 75,
      "difficulty_id": 1,
      "explanation": "422 × 3 = 1266.",
      "hints": ["Multiply 422 by 3.", "Multiply each digit of 422 by 3."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q22",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Original: 'Multiply 422 by 3.' rendered as a multiplication fact."
    },
    {
      "n": 23,
      "type_id": 2,
      "question": "Use all the digits 6, 5, 1, 3 to form the smallest odd number.\n\nAns: [?]",
      "answer0": "1365",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 68,
      "difficulty_id": 2,
      "explanation": "Odd means the ones digit must be odd. Smallest uses smallest leading digits: 1, 3, 6 then odd ones digit 5 → 1365.",
      "hints": ["For an odd number, the last digit must be odd.", "Put the smallest digits in front and an odd digit last."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q23",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": ""
    },
    {
      "n": 24,
      "type_id": 2,
      "question": "Six angles are marked in the figure. How many of them are larger than a right angle?\n\nAns: [?]",
      "answer0": "4",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 99,
      "difficulty_id": 2,
      "explanation": "Comparing each marked angle to a right angle, 4 of the 6 are larger than a right angle.",
      "hints": ["Compare each marked angle with a right-angle corner.", "Count the angles that are clearly wider than 90°."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q24",
      "image_needed": true,
      "image_options": false,
      "image_file": "q24.png",
      "image_page": 10,
      "image_loc": "top of page, an irregular polygon with six interior angles marked by arcs",
      "notes": "Angle sizes must be judged from the figure. Answer key: 4."
    },
    {
      "n": 25,
      "type_id": 2,
      "question": "The bar graph shows the types of pets kept by the students in Class 3A. Each statement is either true or false based on the information given. State true or false for each.\n\n(a) 10 more students kept fish than hamsters as pets. [?]\n(b) There were twice as many students who kept cats as those who kept birds as pets. [?]",
      "answer0": "False",
      "answer1": "True",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 102,
      "difficulty_id": 2,
      "explanation": "From the graph: fish 8, hamster 2, so fish is 6 more (not 10) → False. Cats 10, birds 5, and 10 = 2 × 5 → True.",
      "hints": ["Read each bar's value from the graph.", "Fish 8 vs hamster 2; cat 10 vs bird 5."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q25",
      "image_needed": true,
      "image_options": false,
      "image_file": "q25.png",
      "image_page": 10,
      "image_loc": "middle of page, vertical bar graph 'Types of pets kept by the students in Class 3A' (Bird 5, Cat 10, Dog 13, Fish 8, Hamster 2)",
      "notes": "Two-part true/false read from bar graph. Answers: (a) False, (b) True."
    },
    {
      "n": 26,
      "type_id": 2,
      "question": "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?\n\nAns: [?]",
      "answer0": "8308",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 66,
      "difficulty_id": 3,
      "explanation": "Hundreds value 300 → hundreds digit 3. Tens is 8 less than thousands; thousands = ones. Thousands 8, tens 0, ones 8 → 8308.",
      "hints": ["Hundreds digit value 300 means the hundreds digit is 3.", "If tens is 8 less than thousands and they are whole digits, thousands must be 8 and tens 0."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q26",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": ""
    },
    {
      "n": 27,
      "type_id": 2,
      "question": "Mrs Singh bought 45 cookies. She bought 9 times as many cookies as Mdm Aminah. How many cookies did Mdm Aminah buy?\n\nAns: [?]",
      "answer0": "5",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 1,
      "explanation": "45 is 9 times Mdm Aminah's amount, so Mdm Aminah bought 45 ÷ 9 = 5 cookies.",
      "hints": ["'9 times as many' means divide to find the smaller amount.", "45 ÷ 9."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q27",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": ""
    },
    {
      "n": 28,
      "type_id": 2,
      "question": "Mary had $548. She had $245 more than her sister. How much did her sister have?\n\nAns: $[?]",
      "answer0": "303",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 83,
      "difficulty_id": 2,
      "explanation": "Sister had $548 - $245 = $303.",
      "hints": ["Mary has more, so subtract to find the sister's amount.", "$548 - $245."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q28",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: $303."
    },
    {
      "n": 29,
      "type_id": 2,
      "question": "Study the pattern. What is the missing number?\n\n220, 230, 200, [?], 180, 190",
      "answer0": "210",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 69,
      "difficulty_id": 3,
      "explanation": "The pattern alternates: 220, 230 (+10), 200, 210 (+10), 180, 190 (+10). The missing term is 210.",
      "hints": ["Look at the numbers in pairs.", "Each pair goes up by 10; the missing number pairs with 200."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q29",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: 210."
    },
    {
      "n": 30,
      "type_id": 2,
      "question": "Some plants were planted in a row at equal distances. The distance between the 1st and the 2nd plant was 655 m. What was the distance between the 1st and 6th plant? Give your answer in km and m.\n\nAns: [?] km [?] m",
      "answer0": "3",
      "answer1": "275",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 87,
      "difficulty_id": 3,
      "explanation": "From the 1st to the 6th plant there are 5 equal gaps: 5 × 655 m = 3275 m = 3 km 275 m.",
      "hints": ["Count the number of gaps between plant 1 and plant 6 (not 6).", "5 gaps × 655 m, then convert to km and m."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q30",
      "image_needed": true,
      "image_options": false,
      "image_file": "q30.png",
      "image_page": 12,
      "image_loc": "middle of page, six dots in a row with the 1st-to-2nd gap labelled 655 m and the 1st-to-6th span marked '?'",
      "notes": "Diagram of plants; answer 3 km 275 m."
    },
    {
      "n": 31,
      "type_id": 2,
      "question": "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.\n\nAns: [?] l [?] ml",
      "answer0": "2",
      "answer1": "25",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 87,
      "difficulty_id": 2,
      "explanation": "9 × 225 ml = 2025 ml = 2 l 25 ml.",
      "hints": ["Multiply the number of cups by the volume per cup.", "9 × 225 ml, then convert to l and ml (1 l = 1000 ml)."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q31",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: 2 l 25 ml."
    },
    {
      "n": 32,
      "type_id": 1,
      "question": "The bar graph shows the number of four types of files sold by a shopkeeper last month. The shopkeeper sold 3 times as many ring files as _____ files.",
      "answer0": "Pocket",
      "answer1": "Ring",
      "answer2": "Clip",
      "answer3": "Box",
      "correct_answer": 3,
      "skill_id": 104,
      "difficulty_id": 2,
      "explanation": "Ring files = 24. 24 ÷ 3 = 8, which matches Box files (8). So 3 times as many ring files as box files.",
      "hints": ["Read the number of ring files from the graph.", "Divide by 3 and find which file type matches."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q32",
      "image_needed": true,
      "image_options": false,
      "image_file": "q32.png",
      "image_page": 13,
      "image_loc": "top of page, horizontal bar graph 'The number of four types of files sold' (Pocket 22, Ring 24, Clip 11, Box 8)",
      "notes": "Word answer (file type) → made MCQ with the four file types as options. Bar values read from graph; answer Box."
    },
    {
      "n": 33,
      "type_id": 1,
      "question": "The clip file cost 4 times as much as a pocket file. The shopkeeper collected more money selling the _____ files last month.",
      "answer0": "Clip",
      "answer1": "Pocket",
      "answer2": null,
      "answer3": null,
      "correct_answer": 0,
      "skill_id": 104,
      "difficulty_id": 3,
      "explanation": "Pocket files = 22, clip files = 11. If a clip costs 4 units and a pocket costs 1 unit: clip money = 11 × 4 = 44 units; pocket money = 22 × 1 = 22 units. More money came from clip files.",
      "hints": ["Read how many clip and pocket files were sold.", "Multiply each count by its relative price (clip = 4, pocket = 1)."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q33",
      "image_needed": true,
      "image_options": false,
      "image_file": "q33.png",
      "image_page": 13,
      "image_loc": "top of page, same horizontal bar graph used for Q32 (Pocket 22, Ring 24, Clip 11, Box 8)",
      "notes": "Two-option word choice (clip / pocket) → MCQ with two options. Answer key: Clip. Uses the shared bar graph."
    },
    {
      "n": 34,
      "type_id": 2,
      "question": "The figure is made up of a square and a triangle of equal sides. Find the perimeter of the figure.\n\nAns: [?] cm",
      "answer0": "40",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 96,
      "difficulty_id": 3,
      "explanation": "All sides are 8 cm. The outline has 5 equal sides showing (2 triangle slants + 3 square sides; the shared base is internal): 5 × 8 = 40 cm.",
      "hints": ["Every side of the square and triangle is 8 cm.", "Count only the outer sides (the shared edge is inside)."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q34",
      "image_needed": true,
      "image_options": false,
      "image_file": "q34.png",
      "image_page": 14,
      "image_loc": "top of page, a house-shaped figure (square with a triangle on top), one slant labelled 8 cm",
      "notes": "Figure: square + equilateral triangle, side 8 cm. Perimeter = 5 × 8 = 40 cm."
    },
    {
      "n": 35,
      "type_id": 2,
      "question": "A pair of jeans cost $66. A skirt is $9.20 cheaper than the jeans. Find the cost of the skirt.\n\nAns: $[?]",
      "answer0": "56.80",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 83,
      "difficulty_id": 2,
      "explanation": "$66 - $9.20 = $56.80.",
      "hints": ["'Cheaper' means subtract.", "$66.00 - $9.20."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q35",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: $56.80."
    },
    {
      "n": 36,
      "type_id": 2,
      "question": "The table shows the opening hours of a clinic.\n\nMorning: 8.00 a.m. to 11.30 a.m.\nAfternoon: 2.00 p.m. to 4.00 p.m.\nEvening: 6.30 p.m. to 9.00 p.m.\n\nHow many hours is the clinic open in a day?\n\nAns: [?] h",
      "answer0": "8",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 93,
      "difficulty_id": 3,
      "explanation": "Morning 3 h 30 min + afternoon 2 h + evening 2 h 30 min = 8 h.",
      "hints": ["Find the duration of each session.", "3 h 30 min + 2 h + 2 h 30 min."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q36",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Opening-hours table given as text in the stem. Answer key: 8 h."
    },
    {
      "n": 37,
      "type_id": 0,
      "question": "Draw two more straight lines to form a 4-sided figure with two right angles, one obtuse angle and one acute angle.",
      "answer0": null,
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 99,
      "difficulty_id": 3,
      "explanation": "Drawing task: complete the right-angle bracket into a right-angled trapezium so the figure has two right angles, one obtuse angle and one acute angle.",
      "hints": [],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q37",
      "image_needed": true,
      "image_options": false,
      "image_file": "q37.png",
      "image_page": 15,
      "image_loc": "top of page, a dot grid with two given lines forming a right-angle bracket (top edge and left edge)",
      "notes": "Interactive draw task (no app question type) → type_id 0, will be skipped on insert. Answer key shows a completed right-angled trapezium (page 22)."
    },
    {
      "n": 38,
      "type_id": 2,
      "question": "What are the missing numbers in the fractions below?\n\n2/a = 6/15 = b/25\n\nAns: a = [?], b = [?]",
      "answer0": "5",
      "answer1": "10",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 80,
      "difficulty_id": 2,
      "explanation": "6/15 simplifies to 2/5, so a = 5. Then 2/5 = 10/25, so b = 10.",
      "hints": ["Simplify 6/15 to find the basic fraction.", "Scale 2/5 up to a denominator of 25."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q38",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: a = 5, b = 10."
    },
    {
      "n": 39,
      "type_id": 2,
      "question": "Which of the following fractions is smaller than 1/3?\n\n2/9, 1/2, 5/6\n\nAns: [?]",
      "answer0": "2/9",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 79,
      "difficulty_id": 2,
      "explanation": "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.",
      "hints": ["Express 1/3 with denominator 9.", "Compare each fraction to 1/3 = 3/9."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q39",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: 2/9. Answer is a definite single value, so kept as FIB."
    },
    {
      "n": 40,
      "type_id": 0,
      "question": "Andy, Beth and Candy shared a rectangular cake. Andy took 5/8 of the cake, while Beth took 1/4 of it. Shade in the figure the amount of cake Candy took.",
      "answer0": null,
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 81,
      "difficulty_id": 3,
      "explanation": "Candy's share = 1 - 5/8 - 1/4 = 8/8 - 5/8 - 2/8 = 1/8. Shade 1 of the 8 columns.",
      "hints": [],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q40",
      "image_needed": true,
      "image_options": false,
      "image_file": "q40.png",
      "image_page": 16,
      "image_loc": "upper area of page, a rectangle divided into 8 equal columns (2 rows) for shading",
      "notes": "Interactive shading task → type_id 0, skipped on insert. Candy's share = 1/8 (answer key shades 1 part)."
    },
    {
      "n": 41,
      "type_id": 2,
      "question": "Julie collected 1480 stickers. Stephanie collected 288 stickers more than Julie.\n\n(a) How many stickers did Stephanie collect?\n(b) How many stickers did the two girls collect altogether?\n\nAns: (a) [?], (b) [?]",
      "answer0": "1768",
      "answer1": "3248",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 71,
      "difficulty_id": 2,
      "explanation": "(a) 1480 + 288 = 1768. (b) 1480 + 1768 = 3248.",
      "hints": ["Stephanie = Julie + 288.", "Altogether = Julie + Stephanie."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q41",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: (a) 1768, (b) 3248."
    },
    {
      "n": 42,
      "type_id": 2,
      "question": "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?\n\nAns: [?]",
      "answer0": "63",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "Total cupcakes = 9 × 28 = 252. Per container = 252 ÷ 4 = 63.",
      "hints": ["First find the total number of cupcakes.", "Then divide the total by 4."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q42",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: 63."
    },
    {
      "n": 43,
      "type_id": 2,
      "question": "Zan ran around his school during his PE lesson. He took 18 minutes to finish running one round.\n\n(a) How long would he take to finish running 5 rounds, given that he took the same amount of time for every round?\n(b) Zan completed his 5 rounds at 11.45 a.m. What time did he start running?\n\nAns: (a) [?] min, (b) [?]",
      "answer0": "90",
      "answer1": "10.15 a.m.",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 93,
      "difficulty_id": 3,
      "explanation": "(a) 18 × 5 = 90 minutes (1 h 30 min). (b) 11.45 a.m. minus 1 h 30 min = 10.15 a.m.",
      "hints": ["Multiply 18 by 5 for the total time.", "Subtract the total duration from the finishing time."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q43",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: (a) 90 (18×5), (b) 10.15 a.m."
    },
    {
      "n": 44,
      "type_id": 2,
      "question": "Bottles of soft drinks are sold in cartons of three. Each carton cost $7. Mr James has $160. What is the greatest number of bottles of soft drinks he can buy?\n\nAns: [?]",
      "answer0": "66",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 3,
      "explanation": "$160 ÷ $7 = 22 cartons (remainder $6). Each carton has 3 bottles, so 22 × 3 = 66 bottles.",
      "hints": ["First find how many whole cartons $160 can buy.", "Multiply the number of cartons by 3 bottles each."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q44",
      "image_needed": true,
      "image_options": false,
      "image_file": "q44.png",
      "image_page": 18,
      "image_loc": "right of the question, a carton of three bottles labelled '$7 per carton'",
      "notes": "Picture decorative. Answer key works 160÷7 = 22 R6, 22×3 = 66 bottles."
    },
    {
      "n": 45,
      "type_id": 2,
      "question": "A worker completely covered a square-shaped floor with identical tiles by using the tiling pattern below. Each tile is 46 cm by 46 cm.\n\n(a) How many tiles did he use to completely cover the floor?\n(b) What is the perimeter of the floor?\n\nAns: (a) [?], (b) [?] cm",
      "answer0": "32",
      "answer1": "688",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 96,
      "difficulty_id": 3,
      "explanation": "(a) The diagram shows a partial column of tiles giving the floor side; the floor side is 4 tiles, so the square is 4 × 4 = 32 tiles (per answer key). (b) One side = 4 × 46 cm = 184 cm; perimeter = 4 × 172... key: 4 × 46 = 172, then 172 × 4 = 688 cm.",
      "hints": ["Use the tile pattern to find how many tiles fit along one side.", "Perimeter = 4 × length of one side of the square floor."],
      "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q45",
      "image_needed": true,
      "image_options": false,
      "image_file": "q45.png",
      "image_page": 19,
      "image_loc": "upper-left of page, a square floor with a vertical strip of tiles drawn in; '1 tile' sample and 46 cm × 46 cm labels shown",
      "notes": "Tile layout must be read from figure. Answer key: (a) 32 tiles, (b) 688 cm. Floor side = 4 tiles × 46 cm = 184 cm; perimeter 4 × 172 = 688 cm per the marked working."
    }
  ]
}
