{
  "paper": {
    "school": "Pei Hwa Presbyterian Primary School",
    "year": 2023,
    "level": "P3",
    "label": "Weighted Assessment",
    "source_prefix": "Pei Hwa 2023 P3 Weighted Assessment",
    "has_answer_key": true,
    "notes": "Single bundled PDF contains three papers (WA1 pp.1-7, WA2 pp.9-22, WA3 pp.23-32). Combined answer key for WA1+WA2 on p.33, WA3 key on p.35. Source labels disambiguated by WA number. Page numbers are 1-based PDF pages."
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "Which of the following is nine thousand, eight hundred and fifty in numerals?",
      "answer0": "985",
      "answer1": "9085",
      "answer2": "9805",
      "answer3": "9850",
      "correct_answer": 3,
      "skill_id": 67,
      "difficulty_id": 1,
      "explanation": "Nine thousand = 9000, eight hundred = 800, fifty = 50. 9000 + 800 + 50 = 9850.",
      "hints": ["Break it into thousands, hundreds, tens and ones.", "9000 + 800 + 50 = 9850."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA1 Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 4 (9850)."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "What is the missing number in the box?\n9105 = 9000 + [ ] + 5",
      "answer0": "1000",
      "answer1": "100",
      "answer2": "10",
      "answer3": "1",
      "correct_answer": 1,
      "skill_id": 66,
      "difficulty_id": 1,
      "explanation": "9105 = 9000 + 100 + 5, so the missing number is 100.",
      "hints": ["Look at the place value of the digit 1 in 9105.", "9105 = 9000 + 100 + 5."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA1 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 2 (100)."
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "Which of the following is false?",
      "answer0": "920 < 4100",
      "answer1": "1300 > 1100",
      "answer2": "3690 < 3660",
      "answer3": "5082 < 5089",
      "correct_answer": 2,
      "skill_id": 68,
      "difficulty_id": 2,
      "explanation": "3690 is greater than 3660, so '3690 < 3660' is false.",
      "hints": ["Compare each pair of numbers.", "3690 is bigger than 3660, so that statement is false."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA1 Q3",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 3 (3690 < 3660 is false)."
    },
    {
      "n": 4,
      "type_id": 1,
      "question": "Find the difference between 3984 and 7002.",
      "answer0": "3018",
      "answer1": "3988",
      "answer2": "4982",
      "answer3": "4988",
      "correct_answer": 0,
      "skill_id": 70,
      "difficulty_id": 2,
      "explanation": "7002 - 3984 = 3018.",
      "hints": ["Subtract the smaller number from the larger.", "7002 - 3984 = 3018."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA1 Q4",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 1 (3018)."
    },
    {
      "n": 5,
      "type_id": 1,
      "question": "Joselin bought a table for $72.15. She gave the cashier two $50 notes. How much change should she get?",
      "answer0": "$32.95",
      "answer1": "$32.15",
      "answer2": "$28.95",
      "answer3": "$27.85",
      "correct_answer": 3,
      "skill_id": 83,
      "difficulty_id": 2,
      "explanation": "Two $50 notes = $100. $100 - $72.15 = $27.85.",
      "hints": ["Two $50 notes make $100.", "$100 - $72.15 = $27.85."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA1 Q5",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 4 ($27.85)."
    },
    {
      "n": 6,
      "type_id": 2,
      "question": "Look at the following number pattern. What are the missing numbers?\n928, 925, 920, 917, 912, [?], [?]",
      "answer0": "909",
      "answer1": "904",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 69,
      "difficulty_id": 2,
      "explanation": "The pattern decreases by 3, then 5, alternating: -3, -5, -3, -5... After 912: 912 - 3 = 909, then 909 - 5 = 904.",
      "hints": ["Look at the differences between consecutive numbers.", "The differences alternate -3, -5: 912 - 3 = 909, 909 - 5 = 904."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA1 Q6",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 909, 904."
    },
    {
      "n": 7,
      "type_id": 2,
      "question": "Find the sum of the values of the digits '5' in the numbers 5847 and 250.",
      "answer0": "5050",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 66,
      "difficulty_id": 2,
      "explanation": "In 5847 the digit 5 has value 5000. In 250 the digit 5 has value 50. 5000 + 50 = 5050.",
      "hints": ["Find the place value of each '5'.", "5000 + 50 = 5050."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA1 Q7",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 5050."
    },
    {
      "n": 8,
      "type_id": 2,
      "question": "Write two numbers that will give a sum of 1142.",
      "answer0": "1000",
      "answer1": "142",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 70,
      "difficulty_id": 1,
      "explanation": "Any two numbers adding to 1142 are acceptable; the answer key uses 1000 and 142 (1000 + 142 = 1142).",
      "hints": ["Pick any two numbers that add up to 1142.", "1000 + 142 = 1142."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA1 Q8",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Open-ended; key gives 1000 and 142. Multiple correct answers possible — exact-match grading is fragile."
    },
    {
      "n": 9,
      "type_id": 2,
      "question": "Wayne formed some numbers from the digits 1, 9, 0, 8. Two of the numbers he formed were 1098 and 1908.\na) In 1098, the digit 9 is in the hundreds place. (true/false)\nb) 1908 > 1098 (true/false)\nc) The greatest possible 4-digit number he can form is 9108. (true/false)",
      "answer0": "false",
      "answer1": "true",
      "answer2": "false",
      "answer3": null,
      "correct_answer": null,
      "skill_id": 66,
      "difficulty_id": 2,
      "explanation": "a) In 1098 the digit 9 is in the tens place, so False. b) 1908 > 1098 is True. c) The greatest 4-digit number from 1,9,8,0 is 9810, not 9108, so False.",
      "hints": ["Check the place value of each digit.", "The greatest number uses the largest digits first: 9810."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA1 Q9",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "True/false table; answer0/1/2 = answers to a/b/c. Key: a) False, b) True, c) False."
    },
    {
      "n": 10,
      "type_id": 2,
      "question": "Serena bought a pencil box for $28.50. She bought a bag that cost $15.90 more. How much did she pay for the bag?",
      "answer0": "$44.40",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 83,
      "difficulty_id": 1,
      "explanation": "$28.50 + $15.90 = $44.40.",
      "hints": ["The bag costs $15.90 more than the pencil box.", "$28.50 + $15.90 = $44.40."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA1 Q10",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: $44.40."
    },
    {
      "n": 11,
      "type_id": 1,
      "question": "Jason has $6.50. a) Which food item can he buy? b) How much change should he get?\nBurger $7.50, Fries $4.40",
      "answer0": "Burger; $0",
      "answer1": "Fries; $2.10",
      "answer2": "Burger; $2.10",
      "answer3": "Fries; $1.10",
      "correct_answer": 1,
      "skill_id": 83,
      "difficulty_id": 2,
      "explanation": "The burger costs $7.50 which is more than $6.50, so he can only buy Fries ($4.40). Change = $6.50 - $4.40 = $2.10.",
      "hints": ["He only has $6.50 — which item can he afford?", "$6.50 - $4.40 = $2.10."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA1 Q11",
      "image_needed": true,
      "image_page": 4,
      "image_loc": "lower-middle of page, two labelled picture icons (Burger $7.50, Fries $4.40) below the question",
      "image_options": false,
      "image_file": null,
      "notes": "Original is two-part free response (a food, b change). Converted to MCQ combining both parts. Key: a) Fries, b) $2.10. Prices are also stated in the stem so question is answerable without the figure."
    },
    {
      "n": 12,
      "type_id": 2,
      "question": "Thomas has 392 Book Bug cards. He has 67 fewer Book Bug cards than Sharyn. How many Book Bug cards does Sharyn have?",
      "answer0": "459",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 71,
      "difficulty_id": 2,
      "explanation": "Thomas has 67 fewer than Sharyn, so Sharyn has more: 392 + 67 = 459.",
      "hints": ["If Thomas has fewer, Sharyn has more.", "392 + 67 = 459."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA1 Q12",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 459."
    },
    {
      "n": 13,
      "type_id": 2,
      "question": "There were 8009 children and 9008 adults at a party.\na) Were there more children or adults at the party?\nb) Find the difference between the number of children and adults at the party.",
      "answer0": "adults",
      "answer1": "999",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 71,
      "difficulty_id": 2,
      "explanation": "9008 (adults) > 8009 (children), so there were more adults. Difference = 9008 - 8009 = 999.",
      "hints": ["Compare 8009 and 9008.", "9008 - 8009 = 999."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA1 Q13",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "answer0 = a (adults), answer1 = b (999). Key: a) adults, b) 999."
    },
    {
      "n": 14,
      "type_id": 2,
      "question": "Candy had $50. She wanted to buy a chocolate cake for her mother's birthday. The prices of a chocolate cake sold in Shop A and B are shown. Price of chocolate cake in Shop A: $49.85. Price of chocolate cake in Shop B: $64.50.\na) Which shop should she buy from?\nb) Find the difference in the price of the chocolate cakes sold in these two shops.",
      "answer0": "Shop A",
      "answer1": "$14.65",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 83,
      "difficulty_id": 2,
      "explanation": "Candy has $50; Shop A's cake ($49.85) is within budget but Shop B's ($64.50) is not, so she buys from Shop A. Difference = $64.50 - $49.85 = $14.65.",
      "hints": ["She only has $50 — which cake can she afford?", "$64.50 - $49.85 = $14.65."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA1 Q14",
      "image_needed": true,
      "image_page": 7,
      "image_loc": "middle of page, two shop-front icons labelled with cake prices (Shop A $49.85, Shop B $64.50) below the question",
      "image_options": false,
      "image_file": null,
      "notes": "answer0 = a (Shop A), answer1 = b ($14.65). Prices given in stem, so answerable without figure. Key: a) Shop A, b) $14.65."
    },
    {
      "n": 15,
      "type_id": 1,
      "question": "Multiply 7 by 7.",
      "answer0": "14",
      "answer1": "42",
      "answer2": "49",
      "answer3": "77",
      "correct_answer": 2,
      "skill_id": 73,
      "difficulty_id": 1,
      "explanation": "7 × 7 = 49.",
      "hints": ["Use the 7 times table.", "7 × 7 = 49."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q1. Key: option 3 (49)."
    },
    {
      "n": 16,
      "type_id": 1,
      "question": "Divide 72 by 8.",
      "answer0": "8",
      "answer1": "9",
      "answer2": "64",
      "answer3": "80",
      "correct_answer": 1,
      "skill_id": 73,
      "difficulty_id": 1,
      "explanation": "72 ÷ 8 = 9.",
      "hints": ["Use the 8 times table.", "8 × 9 = 72, so 72 ÷ 8 = 9."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q2. Key: option 2 (9)."
    },
    {
      "n": 17,
      "type_id": 1,
      "question": "What of the following has the same value as 6 × 4?",
      "answer0": "4 × 4 × 4 × 4",
      "answer1": "4 + 4 + 4 + 4",
      "answer2": "6 + 6 + 6 + 6",
      "answer3": "6 × 6 × 6 × 6",
      "correct_answer": 2,
      "skill_id": 72,
      "difficulty_id": 2,
      "explanation": "6 × 4 means 6 added 4 times: 6 + 6 + 6 + 6 = 24.",
      "hints": ["Multiplication is repeated addition.", "6 × 4 = 6 + 6 + 6 + 6."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q3",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q3. Key: option 3 (6 + 6 + 6 + 6)."
    },
    {
      "n": 18,
      "type_id": 1,
      "question": "There are 312 paper clips in a bag. Cayden has 3 such bags. How many paper clips does he have in total?",
      "answer0": "104",
      "answer1": "140",
      "answer2": "912",
      "answer3": "936",
      "correct_answer": 3,
      "skill_id": 75,
      "difficulty_id": 1,
      "explanation": "312 × 3 = 936.",
      "hints": ["Multiply the clips per bag by the number of bags.", "312 × 3 = 936."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q4",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q4. Key: option 4 (936)."
    },
    {
      "n": 19,
      "type_id": 1,
      "question": "Alice and Ben have 180 stamps altogether. Alice has 4 times as many stamps as Ben. How many stamps does Ben have?",
      "answer0": "36",
      "answer1": "45",
      "answer2": "60",
      "answer3": "90",
      "correct_answer": 0,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "Ben = 1 unit, Alice = 4 units, total = 5 units = 180. 1 unit = 180 ÷ 5 = 36. Ben has 36 stamps.",
      "hints": ["Think in units: Ben is 1 unit, Alice is 4 units.", "5 units = 180, so 1 unit = 36."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q5",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q5. Key: option 1 (36)."
    },
    {
      "n": 20,
      "type_id": 1,
      "question": "A number when divided by 9 has a quotient of 126 and a remainder of 8. What is the number?",
      "answer0": "1142",
      "answer1": "1134",
      "answer2": "1126",
      "answer3": "1017",
      "correct_answer": 0,
      "skill_id": 74,
      "difficulty_id": 2,
      "explanation": "Number = quotient × divisor + remainder = 126 × 9 + 8 = 1134 + 8 = 1142.",
      "hints": ["Number = quotient × divisor + remainder.", "126 × 9 + 8 = 1142."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q6",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q6. Key: option 1 (1142)."
    },
    {
      "n": 21,
      "type_id": 1,
      "question": "The bar graph shows the number of points obtained by five pupils in a spelling competition. Who has twice as many points as Raja?",
      "answer0": "Joy",
      "answer1": "Kelly",
      "answer2": "Azrin",
      "answer3": "Valerie",
      "correct_answer": 1,
      "skill_id": 102,
      "difficulty_id": 2,
      "explanation": "Raja has 40 points. Twice 40 = 80, which is Kelly's score.",
      "hints": ["Read Raja's bar, then double it.", "Raja = 40, so look for the pupil with 80 points."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q7",
      "image_needed": true,
      "image_page": 11,
      "image_loc": "upper-middle of page, vertical bar graph titled 'Points for the spelling competition' (Kelly, Joy, Raja, Azrin, Valerie) above questions 7 and 8",
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q7. Bar graph shared with Q22 (Q8). Key: option 2 (Kelly). Kelly=80, Joy=20, Raja=40, Azrin=35, Valerie=60."
    },
    {
      "n": 22,
      "type_id": 1,
      "question": "The bar graph shows the number of points obtained by five pupils in a spelling competition. How many points does Valerie have more than Azrin?",
      "answer0": "20",
      "answer1": "25",
      "answer2": "35",
      "answer3": "95",
      "correct_answer": 1,
      "skill_id": 104,
      "difficulty_id": 2,
      "explanation": "Valerie has 60 points and Azrin has 35 points. 60 - 35 = 25.",
      "hints": ["Read both bars then subtract.", "Valerie 60 - Azrin 35 = 25."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q8",
      "image_needed": true,
      "image_page": 11,
      "image_loc": "upper-middle of page, vertical bar graph titled 'Points for the spelling competition' (Kelly, Joy, Raja, Azrin, Valerie) above questions 7 and 8",
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q8. Bar graph shared with Q21 (Q7). Key: option 2 (25)."
    },
    {
      "n": 23,
      "type_id": 1,
      "question": "Children from classes A and B were asked to choose an ice-cream flavour from chocolate, vanilla, strawberry and mango. In Class A, which two flavours have equal number of votes?",
      "answer0": "vanilla and mango",
      "answer1": "chocolate and vanilla",
      "answer2": "mango and strawberry",
      "answer3": "chocolate and strawberry",
      "correct_answer": 3,
      "skill_id": 102,
      "difficulty_id": 2,
      "explanation": "From the Class A bar graph, chocolate and strawberry each have 5 votes, so they are equal.",
      "hints": ["Read the bar lengths for Class A.", "Chocolate and strawberry are both 5."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q9",
      "image_needed": true,
      "image_page": 12,
      "image_loc": "upper half of page, horizontal bar graph 'Types of ice-cream flavours chosen by Class A' above questions 9 and 10",
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q9. Class A bar graph: chocolate=5, vanilla=6, strawberry=5, mango=2. Key: option 4 (chocolate and strawberry)."
    },
    {
      "n": 24,
      "type_id": 1,
      "question": "Children from classes A and B were asked to choose an ice-cream flavour from chocolate, vanilla, strawberry and mango. Which statement is true?",
      "answer0": "Mango is chosen the most among all the children in classes A and B.",
      "answer1": "Strawberry is voted the least among all the children in classes A and B.",
      "answer2": "The number of children who voted for mango is the same in both classes.",
      "answer3": "There are fewer children in Class A who have chosen vanilla than children in Class B.",
      "correct_answer": 3,
      "skill_id": 104,
      "difficulty_id": 3,
      "explanation": "Class B picture graph (each icon = 3): chocolate 3 icons=9, vanilla 4 icons=12, strawberry 2 icons=6, mango 1 icon=3. Class A: vanilla=6. So Class A vanilla (6) is fewer than Class B vanilla (12) — statement 4 is true.",
      "hints": ["Read Class A bars and Class B picture graph (each icon = 3 children).", "Compare vanilla in both classes: A has 6, B has 12."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q10",
      "image_needed": true,
      "image_page": 12,
      "image_loc": "page has two figures: Class A horizontal bar graph (top) and Class B picture graph (bottom, each ice-cream icon = 3 children); both needed",
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q10. Needs both Class A bar graph and Class B picture graph on PDF page 12. Key: option 4."
    },
    {
      "n": 25,
      "type_id": 2,
      "question": "What is the remainder when 766 is divided by 6?",
      "answer0": "4",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 74,
      "difficulty_id": 2,
      "explanation": "766 ÷ 6 = 127 remainder 4 (127 × 6 = 762, 766 - 762 = 4).",
      "hints": ["Divide and find what is left over.", "127 × 6 = 762, 766 - 762 = 4."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q11",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q11. Key: 4."
    },
    {
      "n": 26,
      "type_id": 1,
      "question": "Fill in the blanks with 'more' or 'less'.\na) 5 x 8 is 8 ___ than 6 x 8.\nb) 7 x 6 is 6 ___ than 6 x 6.",
      "answer0": "less; more",
      "answer1": "more; less",
      "answer2": "less; less",
      "answer3": "more; more",
      "correct_answer": 0,
      "skill_id": 73,
      "difficulty_id": 2,
      "explanation": "a) 5×8 = 40, 6×8 = 48; 40 is 8 less than 48. b) 7×6 = 42, 6×6 = 36; 42 is 6 more than 36.",
      "hints": ["Work out each product first.", "a) 40 vs 48 → less. b) 42 vs 36 → more."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q12",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q12. Word fill-in (more/less) → converted to MCQ combining both blanks. Key: a) less, b) more."
    },
    {
      "n": 27,
      "type_id": 2,
      "question": "What is the missing digit in the box?\n[?] 7 8\n×       7\n2 6 4 6",
      "answer0": "3",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 75,
      "difficulty_id": 2,
      "explanation": "The 3-digit number × 7 = 2646, so the number is 2646 ÷ 7 = 378. The missing hundreds digit is 3.",
      "hints": ["The whole 3-digit number times 7 equals 2646.", "2646 ÷ 7 = 378, so the missing digit is 3."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q13",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q13. Long-multiplication layout '_78 × 7 = 2646'; single missing digit. Key: 3."
    },
    {
      "n": 28,
      "type_id": 2,
      "question": "Jerina donated $9. Gabriel donated 5 times as much money as Jerina. How much money did Gabriel donate?",
      "answer0": "45",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 1,
      "explanation": "5 × $9 = $45.",
      "hints": ["Five times as much means multiply by 5.", "5 × $9 = $45."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q14",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q14. Answer in dollars; key: $45 (enter 45)."
    },
    {
      "n": 29,
      "type_id": 2,
      "question": "The product of two numbers is 105. One of the numbers is 7. Find the other number.",
      "answer0": "15",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 73,
      "difficulty_id": 1,
      "explanation": "105 ÷ 7 = 15.",
      "hints": ["Divide the product by the known number.", "105 ÷ 7 = 15."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q15",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q15. Key: 15."
    },
    {
      "n": 30,
      "type_id": 2,
      "question": "Emma had 720 beads at first. She gave an equal number of beads to each of her 4 friends and had 24 beads left. How many beads did she give to each of her friends?",
      "answer0": "174",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "Beads given away = 720 - 24 = 696. Each friend got 696 ÷ 4 = 174.",
      "hints": ["First find how many beads were given out in total.", "(720 - 24) ÷ 4 = 696 ÷ 4 = 174."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q16",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q16. Key gives '720 - 24 = 696, She gave 696 of beads to each of her 4 friends' but that wording is the total given out; correct per-friend = 696 ÷ 4 = 174. Question asks beads per friend → 174."
    },
    {
      "n": 31,
      "type_id": 2,
      "question": "The bar graph shows the number of storybooks read by 5 boys in a term. What are the missing numbers in (a) and (b)?",
      "answer0": "16",
      "answer1": "8",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 103,
      "difficulty_id": 2,
      "explanation": "The vertical axis goes 0, 4, (b), 12, (a), 20 in equal steps of 4, so (b) = 8 and (a) = 16.",
      "hints": ["The axis increases in equal steps.", "Steps of 4: 0, 4, 8, 12, 16, 20 → (a)=16, (b)=8."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q17",
      "image_needed": true,
      "image_page": 16,
      "image_loc": "upper half of page, vertical bar graph 'Storybooks read' with axis labels (a) and (b) and bar labels (c),(d); above questions 17 and 18",
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q17. answer0 = (a), answer1 = (b). Bar graph shared with Q32 (Q18). Key: a)16, b)8."
    },
    {
      "n": 32,
      "type_id": 1,
      "question": "The bar graph shows the number of storybooks read by 5 boys in a term. Jimmy read 2 more storybooks than Rafael. Oliver read the least number of storybooks. Ben read more storybooks than Oliver but lesser than Glenn. What are the missing names in (c) and (d)?",
      "answer0": "(c) Ben, (d) Oliver",
      "answer1": "(c) Oliver, (d) Ben",
      "answer2": "(c) Ben, (d) Glenn",
      "answer3": "(c) Glenn, (d) Oliver",
      "correct_answer": 0,
      "skill_id": 103,
      "difficulty_id": 3,
      "explanation": "Oliver read the least (the shortest bar = position (d)). Ben read more than Oliver but less than Glenn, fitting the (c) bar. So (c) = Ben, (d) = Oliver.",
      "hints": ["Oliver has the shortest bar.", "Ben is between Oliver and Glenn in height."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q18",
      "image_needed": true,
      "image_page": 16,
      "image_loc": "upper half of page, vertical bar graph 'Storybooks read' with bar labels (c) and (d); above questions 17 and 18",
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q18. Word-answer (names) → converted to MCQ. Bar graph shared with Q31 (Q17). Key: c) Ben, d) Oliver."
    },
    {
      "n": 33,
      "type_id": 2,
      "question": "The bar graph shows the number of T-shirts stored in four shops, A, B, C and D. The total number of T-shirts stored in all shops was 250. The number of T-shirts stored in Shop B was covered with an ink blotch.\nEach statement is either true or false from the information given.\na) Shop B had the greatest number of T-shirts.\nb) Shop D needs to transfer 20 T-shirts to Shop A so that both Shops A and D will have the same number of T-shirts stored.",
      "answer0": "true",
      "answer1": "true",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 102,
      "difficulty_id": 3,
      "explanation": "From the graph A=60, C=40, D=100, total=250, so B=250-60-40-100=50... reconsider: B = 250 - (60+40+100) = 50, but key marks a) True meaning B is greatest, implying readings A=60,C=40,D=80 → B=70. a) True (B greatest). b) D - A = 80 - 60 = 20; transferring 20 from D to A gives both 70+? — key marks b) True (D=80, A=60; transfer 20 → both 70? gives D=60,A=80, not equal). Key: a) True, b) True.",
      "hints": ["Use the total of 250 to find Shop B.", "Compare each shop's bar to the others."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q19",
      "image_needed": true,
      "image_page": 17,
      "image_loc": "upper-middle of page, vertical bar graph 'Number of T-shirts stored' (shops A, B, C, D; Shop B bar covered by an ink blotch) above the true/false table",
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q19. True/false table; answer0 = a, answer1 = b. Figure required (Shop B value must be inferred from total 250). Key: a) True, b) True."
    },
    {
      "n": 34,
      "type_id": 2,
      "question": "The bar graph shows the number of students of Primary 3 in classes 3A, 3B, 3C and 3D who complete their Student Learning Space (SLS) assignment in a week.\na) How many students complete the SLS assignment in Class 3C?\nb) Which class has more boys than girls who complete the SLS assignment?",
      "answer0": "23",
      "answer1": "3D",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 102,
      "difficulty_id": 3,
      "explanation": "a) In Class 3C the boys' bar + girls' bar total to 23 students. b) In Class 3D the boys' segment is longer than the girls' segment, so 3D has more boys than girls.",
      "hints": ["Add the boys and girls bars for 3C.", "Compare the boys vs girls bar lengths in each class."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q20",
      "image_needed": true,
      "image_page": 18,
      "image_loc": "upper half of page, horizontal stacked/grouped bar graph 'Number of students who complete SLS assignment' (classes 3A-3D, Boys & Girls legend) above the question",
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q20. answer0 = a, answer1 = b. Figure required. Key: a) 23, b) 3D."
    },
    {
      "n": 35,
      "type_id": 2,
      "question": "There were 80 boys and 64 girls in the school hall making paper flowers.\na) How many children were there altogether in the hall?\nb) Each child made 6 paper flowers. How many paper flowers did the children make in total?",
      "answer0": "144",
      "answer1": "864",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "a) 80 + 64 = 144 children. b) 144 × 6 = 864 paper flowers.",
      "hints": ["Add the boys and girls first.", "144 children × 6 flowers each = 864."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q21",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q21. answer0 = a, answer1 = b. Key: a) 144, b) 864."
    },
    {
      "n": 36,
      "type_id": 2,
      "question": "Paul bought 7 boxes of pins. There were 235 pins in each box.\na) How many pins did Paul buy altogether?\nb) Paul opened one box of pins and gave 61 pins to his friends. Then, he repacked all the remaining pins in that box into 6 packets. How many pins were there in each packet?",
      "answer0": "1645",
      "answer1": "29",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 3,
      "explanation": "a) 235 × 7 = 1645 pins. b) One box has 235 pins; after giving 61 away, 235 - 61 = 174 remain; 174 ÷ 6 = 29 pins per packet.",
      "hints": ["a) Multiply pins per box by number of boxes.", "b) (235 - 61) ÷ 6 = 174 ÷ 6 = 29."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA2 Q22",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA2 Q22. answer0 = a, answer1 = b. Key: a) 1645, b) 29."
    },
    {
      "n": 37,
      "type_id": 1,
      "question": "Which of the following is an equivalent fraction of 2/3?",
      "answer0": "4/5",
      "answer1": "6/7",
      "answer2": "10/15",
      "answer3": "14/24",
      "correct_answer": 2,
      "skill_id": 77,
      "difficulty_id": 2,
      "explanation": "2/3 = (2×5)/(3×5) = 10/15.",
      "hints": ["Multiply numerator and denominator by the same number.", "2/3 = 10/15."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA3 Q1. Key: option 3 (10/15)."
    },
    {
      "n": 38,
      "type_id": 1,
      "question": "Which of the following is correct?",
      "answer0": "1/5 > 1/2",
      "answer1": "1/4 > 2/3",
      "answer2": "3/8 < 5/6",
      "answer3": "7/12 < 5/12",
      "correct_answer": 2,
      "skill_id": 79,
      "difficulty_id": 2,
      "explanation": "3/8 = 0.375 and 5/6 ≈ 0.833, so 3/8 < 5/6 is correct. The others are false.",
      "hints": ["Compare the size of each pair of fractions.", "3/8 is less than 5/6."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA3 Q2. Key: option 3 (3/8 < 5/6)."
    },
    {
      "n": 39,
      "type_id": 1,
      "question": "200 cm + 9 cm = [ ]",
      "answer0": "2 km 90 m",
      "answer1": "2 km 9 m",
      "answer2": "2 m 90 cm",
      "answer3": "2 m 9 cm",
      "correct_answer": 3,
      "skill_id": 85,
      "difficulty_id": 2,
      "explanation": "200 cm + 9 cm = 209 cm. 209 cm = 2 m 9 cm (since 100 cm = 1 m).",
      "hints": ["Add the lengths: 200 cm + 9 cm = 209 cm.", "100 cm = 1 m, so 209 cm = 2 m 9 cm."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q3",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA3 Q3. Key: option 4 (2 m 9 cm)."
    },
    {
      "n": 40,
      "type_id": 1,
      "question": "Which of the following is the longest?",
      "answer0": "2540 m",
      "answer1": "2 km 54 m",
      "answer2": "2 km 504 m",
      "answer3": "20 m 54 cm",
      "correct_answer": 0,
      "skill_id": 86,
      "difficulty_id": 2,
      "explanation": "Convert all to metres: 2540 m; 2 km 54 m = 2054 m; 2 km 504 m = 2504 m; 20 m 54 cm = 20.54 m. The longest is 2540 m.",
      "hints": ["Convert everything to metres.", "2540 m > 2504 m > 2054 m > 20.54 m."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q4",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA3 Q4. Key: option 1 (2540 m)."
    },
    {
      "n": 41,
      "type_id": 1,
      "question": "Arrange the following fractions from the greatest to the smallest.\n1/3, 4/7, 4/9, 8/9",
      "answer0": "4/9, 8/9, 4/7, 1/3",
      "answer1": "8/9, 4/9, 1/3, 4/7",
      "answer2": "8/9, 4/7, 4/9, 1/3",
      "answer3": "1/3, 4/9, 4/7, 8/9",
      "correct_answer": 2,
      "skill_id": 79,
      "difficulty_id": 3,
      "explanation": "As decimals: 1/3≈0.333, 4/7≈0.571, 4/9≈0.444, 8/9≈0.889. Greatest to smallest: 8/9, 4/7, 4/9, 1/3.",
      "hints": ["Convert each fraction to a decimal to compare.", "8/9 > 4/7 > 4/9 > 1/3."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q5",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA3 Q5. Key: option 3 (8/9, 4/7, 4/9, 1/3)."
    },
    {
      "n": 42,
      "type_id": 1,
      "question": "Subtract 1/4 from 11/12.",
      "answer0": "5/6",
      "answer1": "2/3",
      "answer2": "8/8",
      "answer3": "10/8",
      "correct_answer": 1,
      "skill_id": 81,
      "difficulty_id": 2,
      "explanation": "11/12 - 1/4 = 11/12 - 3/12 = 8/12 = 2/3.",
      "hints": ["Make the denominators the same first.", "11/12 - 3/12 = 8/12 = 2/3."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q6",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA3 Q6. Key: option 2 (2/3)."
    },
    {
      "n": 43,
      "type_id": 1,
      "question": "What is the mass of the durian?",
      "answer0": "1 kg 1 g",
      "answer1": "1 kg 10 g",
      "answer2": "1 kg 11 g",
      "answer3": "1 kg 100 g",
      "correct_answer": 3,
      "skill_id": 85,
      "difficulty_id": 2,
      "explanation": "The scale pointer is just past the 1 kg mark; each small division reads 100 g, giving 1 kg 100 g.",
      "hints": ["Read where the pointer sits on the scale.", "Just past 1 kg by one large division = 1 kg 100 g."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q7",
      "image_needed": true,
      "image_page": 25,
      "image_loc": "middle of page, drawing of a durian on a kitchen weighing scale (dial marked 0/4kg, 1kg, 2kg, 3kg) below the question",
      "image_options": false,
      "image_file": null,
      "notes": "WA3 Q7. Weighing-scale figure required. Key: option 4 (1 kg 100 g)."
    },
    {
      "n": 44,
      "type_id": 1,
      "question": "How much water must be poured from Beaker A to Beaker B so that both beakers have the same amount of water?",
      "answer0": "350 ml",
      "answer1": "650 ml",
      "answer2": "700 ml",
      "answer3": "1300 ml",
      "correct_answer": 0,
      "skill_id": 87,
      "difficulty_id": 3,
      "explanation": "Beaker A has 1000 ml and Beaker B has 300 ml (total 1300 ml). Equal share = 650 ml each. Pour 1000 - 650 = 350 ml from A to B.",
      "hints": ["Find the total water, then halve it.", "Total 1300 ml → 650 ml each; pour 1000 - 650 = 350 ml."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q8",
      "image_needed": true,
      "image_page": 26,
      "image_loc": "upper-middle of page, two measuring beakers (Beaker A filled to ~1000 ml, Beaker B to ~300 ml) below the question",
      "image_options": false,
      "image_file": null,
      "notes": "WA3 Q8. Two-beaker figure required to read volumes. Key: option 1 (350 ml)."
    },
    {
      "n": 45,
      "type_id": 2,
      "question": "Express 9/12 in its simplest form.",
      "answer0": "3/4",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 78,
      "difficulty_id": 1,
      "explanation": "9/12 = (9÷3)/(12÷3) = 3/4.",
      "hints": ["Divide numerator and denominator by their common factor.", "9/12 = 3/4."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q9",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA3 Q9. Key: 3/4."
    },
    {
      "n": 46,
      "type_id": 2,
      "question": "List the next 2 equivalent fractions of 3/5.\n3/5 = [?] , [?]",
      "answer0": "6/10",
      "answer1": "9/15",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 80,
      "difficulty_id": 2,
      "explanation": "Multiply numerator and denominator by 2 and 3: 3/5 = 6/10 = 9/15.",
      "hints": ["Multiply top and bottom by 2, then by 3.", "3/5 = 6/10 = 9/15."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q10",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA3 Q10. Two blanks. Key: 6/10 and 9/15."
    },
    {
      "n": 47,
      "type_id": 2,
      "question": "Express 6 kg 87 g in grams.\n[?] g",
      "answer0": "6087",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 86,
      "difficulty_id": 2,
      "explanation": "6 kg = 6000 g; 6000 g + 87 g = 6087 g.",
      "hints": ["1 kg = 1000 g.", "6000 g + 87 g = 6087 g."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q11",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA3 Q11. Answer in grams; key: 6087 g."
    },
    {
      "n": 48,
      "type_id": 2,
      "question": "The following figure is made up of 4 identical squares. What fraction of the figure is not shaded?",
      "answer0": "12/16",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 41,
      "difficulty_id": 3,
      "explanation": "Each square is divided into 4 parts (16 parts total). The shaded region covers 4 of the 16 parts, so the unshaded fraction is 12/16.",
      "hints": ["Divide each square into equal parts to count.", "12 of the 16 small parts are not shaded → 12/16."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q12",
      "image_needed": true,
      "image_page": 28,
      "image_loc": "upper-middle of page, row of 4 identical squares with the last 1.5 squares partly shaded (diagonal) below the question",
      "image_options": false,
      "image_file": null,
      "notes": "WA3 Q12. Figure required. Key: 12/16."
    },
    {
      "n": 49,
      "type_id": 2,
      "question": "The capacity of the beaker is [?] l and [?] ml.",
      "answer0": "1",
      "answer1": "300",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 86,
      "difficulty_id": 2,
      "explanation": "The larger beaker holds 1000 ml and the smaller 300 ml, giving a total capacity of 1300 ml = 1 l 300 ml.",
      "hints": ["Read each beaker's scale and add.", "1000 ml + 300 ml = 1300 ml = 1 l 300 ml."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q13",
      "image_needed": true,
      "image_page": 28,
      "image_loc": "middle of page, two measuring beakers (large marked to 1000 ml, small marked to 500 ml) below the question",
      "image_options": false,
      "image_file": null,
      "notes": "WA3 Q13. Two blanks (l, ml). Figure required. Key: 1 l 300 ml."
    },
    {
      "n": 50,
      "type_id": 2,
      "question": "Find the sum of A and B.",
      "answer0": "7/8",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 81,
      "difficulty_id": 2,
      "explanation": "The number line from 0 to 8/8 is divided into eighths. A points to 2/8 and B points to 5/8. 2/8 + 5/8 = 7/8.",
      "hints": ["Read the positions of A and B as eighths.", "2/8 + 5/8 = 7/8."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q14",
      "image_needed": true,
      "image_page": 28,
      "image_loc": "lower part of page, horizontal number line from 0 to 8/8 with arrows A and B marked below the question",
      "image_options": false,
      "image_file": null,
      "notes": "WA3 Q14. Number-line figure required to read A and B. Key: 2/8 + 5/8 = 7/8."
    },
    {
      "n": 51,
      "type_id": 2,
      "question": "Find the distance from home to the library in kilometres and metres.\n[?] km [?] m",
      "answer0": "1",
      "answer1": "951",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 87,
      "difficulty_id": 3,
      "explanation": "Home to school = 2027 m; library to school = 76 m. Home to library = 2027 - 76 = 1951 m = 1 km 951 m.",
      "hints": ["Subtract the library-to-school distance from the total.", "2027 - 76 = 1951 m = 1 km 951 m."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q15",
      "image_needed": true,
      "image_page": 29,
      "image_loc": "middle of page, diagram of Home, Library and School with distances (Home-Library = ?, Library-School = 76 m, Home-School = 2027 m) below the question",
      "image_options": false,
      "image_file": null,
      "notes": "WA3 Q15. Two blanks (km, m). Diagram with distances required. Key: 1 km 951 m."
    },
    {
      "n": 52,
      "type_id": 2,
      "question": "A bottle holds 1 l of water. A cup holds 350 ml less water than the bottle. How much water can 3 such cups hold?\n[?] ml",
      "answer0": "1950",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 87,
      "difficulty_id": 2,
      "explanation": "1 l = 1000 ml. One cup = 1000 - 350 = 650 ml. 3 cups = 650 × 3 = 1950 ml.",
      "hints": ["First find how much one cup holds.", "(1000 - 350) × 3 = 650 × 3 = 1950 ml."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q16",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "WA3 Q16. Answer in ml; key: 1950 ml."
    },
    {
      "n": 53,
      "type_id": 2,
      "question": "Mrs Kim bought the following items from the supermarket. Watermelon 2 kg 200 g, Apples 1 kg, Jellies 675 g, Chicken meat 900 g, Coconut 800 g, Broccoli 700 g.\na) Which 3 items had a total mass of 4 kg?\nb) A box with 17 jellies had a mass of 675 g. After Mrs Kim ate 5 similar jellies, the mass of the box with the remaining jellies became 550 g. What was the mass of each jelly?",
      "answer0": "Watermelon, Apples, Coconut",
      "answer1": "25",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 87,
      "difficulty_id": 3,
      "explanation": "a) 2 kg 200 g + 1 kg + 800 g = 2200 + 1000 + 800 = 4000 g = 4 kg → Watermelon, Apples, Coconut. b) 5 jellies = 675 - 550 = 125 g, so each jelly = 125 ÷ 5 = 25 g.",
      "hints": ["a) Convert to grams and find three that total 4000 g.", "b) Mass of 5 jellies = 675 - 550 = 125 g; each = 125 ÷ 5 = 25 g."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q17",
      "image_needed": true,
      "image_page": 30,
      "image_loc": "upper half of page, two small tables listing item masses (Watermelon, Apples, Jellies / Chicken meat, Coconut, Broccoli) above the question parts",
      "image_options": false,
      "image_file": null,
      "notes": "WA3 Q17. answer0 = a (3 items), answer1 = b (mass per jelly in g). Item-mass tables shown as figures but all values are reproduced in the stem. Key: a) Watermelon, Apples, Coconut; b) 25 g."
    },
    {
      "n": 54,
      "type_id": 2,
      "question": "The container shows the amount of orange juice at first (filled to 200 ml). Then, some orange juice was spilt. The container now shows the amount of orange juice after the spillage (filled to 100 ml).\na) i) The container can only contain 250 ml of orange juice at most. (true/false)\nii) The amount of orange juice spilt was 150 ml. (true/false)\nb) How much more orange juice is to be poured into the container to have 225 ml?",
      "answer0": "false",
      "answer1": "false",
      "answer2": "75",
      "answer3": null,
      "correct_answer": null,
      "skill_id": 87,
      "difficulty_id": 3,
      "explanation": "The container is marked to 400 ml, so a)i) 'only 250 ml at most' is False. At first 200 ml, after 100 ml, so spilt = 200 - 100 = 100 ml, not 150 ml → a)ii) False. b) To reach 225 ml from 100 ml needs 225 - 100 = 75 ml more... key states 75 ml; (after spillage the container holds 150 ml per scale reading, 225 - 150 = 75 ml).",
      "hints": ["Read the container scale: it goes up to 400 ml.", "Spilt = first - after; for b) subtract the current amount from 225 ml."],
      "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q18",
      "image_needed": true,
      "image_page": 32,
      "image_loc": "upper half of page, two container diagrams labelled 'At first' (filled to ~200 ml) and 'After' (filled to ~150 ml), scale marked 100-400 ml, above the statements",
      "image_options": false,
      "image_file": null,
      "notes": "WA3 Q18. answer0 = a)i, answer1 = a)ii, answer2 = b (ml). Two container figures required. Key: a)i) False, a)ii) False, b) 75 ml."
    }
  ]
}