{
  "paper": {
    "school": "Henry Park",
    "year": 2023,
    "level": "P2",
    "label": "Quiz 3",
    "source_prefix": "Henry Park 2023 P2 Quiz 3",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "8 × 4 = [?]",
      "answer0": "12",
      "answer1": "2",
      "answer2": "32",
      "answer3": "36",
      "correct_answer": 2,
      "skill_id": 39,
      "difficulty_id": 1,
      "explanation": "8 × 4 = 32.",
      "hints": ["8 fours: 8 + 8 + 8 + 8.", "Count 8, 16, 24, 32."],
      "source": "Henry Park 2023 P2 Quiz 3 Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: option 3 (1-based) = 32 = index 2."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "27 ÷ 3 = [?]",
      "answer0": "8",
      "answer1": "9",
      "answer2": "24",
      "answer3": "30",
      "correct_answer": 1,
      "skill_id": 39,
      "difficulty_id": 1,
      "explanation": "27 ÷ 3 = 9 because 3 × 9 = 27.",
      "hints": ["How many 3s make 27?", "3 × 9 = 27."],
      "source": "Henry Park 2023 P2 Quiz 3 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: option 2 (1-based) = 9 = index 1."
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "7 × 3 is [?] more than 5 × 3.",
      "answer0": "6",
      "answer1": "2",
      "answer2": "15",
      "answer3": "21",
      "correct_answer": 0,
      "skill_id": 39,
      "difficulty_id": 2,
      "explanation": "7 × 3 = 21 and 5 × 3 = 15. 21 − 15 = 6.",
      "hints": ["Work out 7 × 3 and 5 × 3 first.", "Subtract the two products."],
      "source": "Henry Park 2023 P2 Quiz 3 Q3",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: option 1 (1-based) = 6 = index 0."
    },
    {
      "n": 4,
      "type_id": 1,
      "question": "Mrs Tan gave 36 pencils to her students. Each student received 4 pencils. How many students did she have?",
      "answer0": "8",
      "answer1": "9",
      "answer2": "32",
      "answer3": "40",
      "correct_answer": 1,
      "skill_id": 40,
      "difficulty_id": 2,
      "explanation": "36 ÷ 4 = 9 students.",
      "hints": ["Share 36 pencils into groups of 4.", "36 ÷ 4 = 9."],
      "source": "Henry Park 2023 P2 Quiz 3 Q4",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: option 2 (1-based) = 9 = index 1."
    },
    {
      "n": 5,
      "type_id": 1,
      "question": "Which of the following does not describe the pictures?",
      "answer0": "4 sixes",
      "answer1": "4 × 6",
      "answer2": "4 groups of 6",
      "answer3": "4 + 4 + 4 + 4",
      "correct_answer": 3,
      "skill_id": 36,
      "difficulty_id": 2,
      "explanation": "The picture shows 4 rows of 6 cupcakes = 4 sixes = 4 × 6 = 4 groups of 6 = 24. The repeated addition would be 6 + 6 + 6 + 6, not 4 + 4 + 4 + 4, so option 4 does not describe the pictures.",
      "hints": ["Count the rows and how many are in each row.", "4 rows of 6; repeated addition adds 6 four times."],
      "source": "Henry Park 2023 P2 Quiz 3 Q5",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 2,
      "image_loc": "middle of page, between the question and the options: a box with 4 rows of 6 cupcakes",
      "notes": "Answer key: option 4 (1-based) = '4 + 4 + 4 + 4' = index 3. Figure is 4 rows of 6 cupcakes (24 total)."
    },
    {
      "n": 6,
      "type_id": 2,
      "question": "Fill in the boxes to complete the multiplication equation based on the picture.",
      "answer0": "3",
      "answer1": "6",
      "answer2": "18",
      "answer3": null,
      "correct_answer": null,
      "skill_id": 36,
      "difficulty_id": 2,
      "explanation": "The picture shows 6 ovals (groups) with 3 cars in each, so 3 × 6 = 18.",
      "hints": ["Count how many cars are in each oval.", "Count how many ovals there are, then multiply."],
      "source": "Henry Park 2023 P2 Quiz 3 Q6",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 3,
      "image_loc": "upper-middle of page, below the question: 6 overlapping ovals each containing 3 cars",
      "notes": "Answer key: 3 x 6 = 18. Rendered as the [?] × [?] = [?] equation (operand, operand, product)."
    },
    {
      "n": 7,
      "type_id": 2,
      "question": "Cupboard A has a mass of 254 kg. It is 118 kg lighter than Cupboard B. What is the mass of Cupboard B?",
      "answer0": "372",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 54,
      "difficulty_id": 2,
      "explanation": "Cupboard B is heavier: 254 + 118 = 372 kg.",
      "hints": ["A is lighter, so B is heavier than A.", "Add: 254 + 118."],
      "source": "Henry Park 2023 P2 Quiz 3 Q7",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: 254 + 118 = 372 kg. Answer is in kg (unit printed on the answer box)."
    },
    {
      "n": 8,
      "type_id": 2,
      "question": "Mrs Tang toasted some slices of bread for 8 of her customers. Each customer received 3 slices of toasted bread. How many slices of bread did Mrs Tang toast?",
      "answer0": "24",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 40,
      "difficulty_id": 2,
      "explanation": "8 customers × 3 slices each = 24 slices.",
      "hints": ["8 groups of 3 slices.", "8 × 3 = 24."],
      "source": "Henry Park 2023 P2 Quiz 3 Q8",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: 24 slices. Picture (8 plates of toast) is decorative; the word problem is fully solvable from the text, so image not required."
    },
    {
      "n": 9,
      "type_id": 2,
      "question": "Miss Salina bought 5 packets of cookies. There were 8 cookies in each packet. All the cookies were shared equally by her 4 children. How many cookies did each child get?",
      "answer0": "10",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 40,
      "difficulty_id": 3,
      "explanation": "5 × 8 = 40 cookies in total. 40 ÷ 4 = 10 cookies each.",
      "hints": ["First find the total number of cookies.", "Then share them equally among 4 children."],
      "source": "Henry Park 2023 P2 Quiz 3 Q9",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: 10 cookies."
    },
    {
      "n": 10,
      "type_id": 2,
      "question": "Sara had 30 marbles. She placed all the marbles equally into boxes. She placed 3 marbles in each box. How many boxes did Sara use?",
      "answer0": "10",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 40,
      "difficulty_id": 2,
      "explanation": "30 ÷ 3 = 10 boxes.",
      "hints": ["Share 30 marbles into groups of 3.", "30 ÷ 3 = 10."],
      "source": "Henry Park 2023 P2 Quiz 3 Q10",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: 30 ÷ 3 = 10. She used 10 boxes."
    },
    {
      "n": 11,
      "type_id": 2,
      "question": "Uncle Chong sold 583 cups of coffee. He sold 223 cups of tea.\n(a) How many cups of coffee and tea did he sell altogether?\n(b) How many more cups of coffee than cups of tea did Uncle Chong sell?",
      "answer0": "806",
      "answer1": "360",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 35,
      "difficulty_id": 2,
      "explanation": "(a) 583 + 223 = 806 cups altogether. (b) 583 − 223 = 360 more cups of coffee than tea.",
      "hints": ["'Altogether' means add the two amounts.", "'How many more' means subtract."],
      "source": "Henry Park 2023 P2 Quiz 3 Q11",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Two-part question. Answer key: (a) 806, (b) 360. answer0=part(a), answer1=part(b)."
    },
    {
      "n": 12,
      "type_id": 2,
      "question": "Dan bought 24 footballs. He placed them equally into 4 bags.\n(a) How many footballs were there in each bag?\n(b) Each bag of footballs has a mass of 3 kg. What is the total mass of 4 such bags of footballs?",
      "answer0": "6",
      "answer1": "12",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 40,
      "difficulty_id": 2,
      "explanation": "(a) 24 ÷ 4 = 6 footballs in each bag. (b) 4 bags × 3 kg = 12 kg total.",
      "hints": ["(a) Share 24 footballs equally into 4 bags.", "(b) 4 bags each 3 kg: 4 × 3."],
      "source": "Henry Park 2023 P2 Quiz 3 Q12",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Two-part question. Answer key: (a) 6, (b) 12 kg. answer0=part(a), answer1=part(b) in kg."
    },
    {
      "n": 13,
      "type_id": 2,
      "question": "Mrs Mani sold 520 candies at a funfair. She sold 155 more candies than Madam Ang. How many candies did they sell in all?",
      "answer0": "885",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 35,
      "difficulty_id": 3,
      "explanation": "Madam Ang sold 520 − 155 = 365 candies. Together: 520 + 365 = 885 candies.",
      "hints": ["First find how many Madam Ang sold (155 fewer than Mrs Mani).", "Then add both amounts together."],
      "source": "Henry Park 2023 P2 Quiz 3 Q13",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: 520 − 155 = 365; 520 + 365 = 885 candies in all."
    },
    {
      "n": 14,
      "type_id": 2,
      "question": "Aunt Rose had some beads. She bought another 330 beads. She then gave 115 beads to her friend. She had 252 beads left. How many beads did she have at first?",
      "answer0": "37",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 35,
      "difficulty_id": 3,
      "explanation": "Work backwards: 252 + 115 = 367 (before giving away). 367 − 330 = 37 beads at first.",
      "hints": ["Work backwards from the 252 she had left.", "Add back the 115 given, then subtract the 330 bought."],
      "source": "Henry Park 2023 P2 Quiz 3 Q14",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: 115 + 252 = 367; 367 − 330 = 37 beads at first."
    }
  ]
}