{
  "paper": {
    "school": "Nanyang",
    "year": 2024,
    "level": "P3",
    "label": "Term 1 Review",
    "source_prefix": "Nanyang 2024 P3 Term 1 Review",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "What is the difference between 748 and 8527?",
      "answer0": "9275",
      "answer1": "8221",
      "answer2": "7779",
      "answer3": "1047",
      "correct_answer": 2,
      "skill_id": 70,
      "difficulty_id": 1,
      "explanation": "8527 - 748 = 7779.",
      "hints": ["Difference means subtract the smaller from the larger.", "Line up the digits by place value and subtract: 8527 - 748."],
      "source": "Nanyang 2024 P3 Term 1 Review Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: option (3) = 7779."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "Arrange the following numbers in increasing order.\n3164    3601    3146",
      "answer0": "3601, 3164, 3146",
      "answer1": "3601, 3146, 3164",
      "answer2": "3164, 3146, 3601",
      "answer3": "3146, 3164, 3601",
      "correct_answer": 3,
      "skill_id": 69,
      "difficulty_id": 1,
      "explanation": "Increasing order goes from smallest to largest: 3146, 3164, 3601.",
      "hints": ["Increasing means smallest first.", "Compare the hundreds and tens digits since all share the same thousands digit."],
      "source": "Nanyang 2024 P3 Term 1 Review Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Three numbers (3164, 3601, 3146) shown in a box in the stem. Answer key: option (4) = 3146, 3164, 3601."
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "Sasha spent $250 at ABC departmental store. She bought a microwave oven, some mugs and some plates. She bought fewer plates than mugs. How many plates did she buy?",
      "answer0": "5",
      "answer1": "2",
      "answer2": "6",
      "answer3": "10",
      "correct_answer": 1,
      "skill_id": 76,
      "difficulty_id": 3,
      "explanation": "Microwave oven costs $150, so $250 - $150 = $100 left for mugs ($8 each) and plates ($10 each). 10 mugs ($80) + 2 plates ($20) = $100, and plates (2) are fewer than mugs (10), so she bought 2 plates.",
      "hints": ["First subtract the microwave oven's cost from $250.", "Use guess-and-check so the mug and plate costs total the remaining amount, with fewer plates than mugs."],
      "source": "Nanyang 2024 P3 Term 1 Review Q3",
      "image_needed": true,
      "image_page": 2,
      "image_loc": "middle of page, below the question: three price tags for Microwave Oven ($150 each), Mug ($8 each) and Plate ($10 each)",
      "image_options": false,
      "image_file": "q3.png",
      "notes": "Prices appear only in the figure (Microwave Oven $150, Mug $8, Plate $10). Answer key: option (2) = 2 plates."
    },
    {
      "n": 4,
      "type_id": 2,
      "question": "(a) Write five thousand and sixty-five in numerals.\n(b) Use all the digits to form the smallest 4-digit odd number.\n5   2   6   1",
      "answer0": "5065",
      "answer1": "1265",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 67,
      "difficulty_id": 2,
      "explanation": "(a) Five thousand and sixty-five = 5065. (b) To make the smallest 4-digit odd number using 5, 2, 6, 1, the last digit must be odd; choose the smallest available odd digit (5) for the ones place, then arrange the rest ascending: 1, 2, 6 → 1265.",
      "hints": ["(a) Five thousand = 5000, sixty-five = 65.", "(b) An odd number ends in an odd digit; keep the smaller digits in the higher places."],
      "source": "Nanyang 2024 P3 Term 1 Review Q4",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Two-part question. (b) gives digit cards 5, 2, 6, 1. Answer key: (a) 5065, (b) 1265."
    },
    {
      "n": 5,
      "type_id": 2,
      "question": "Study the number pattern carefully. What is the missing number?\n943, 1043, [?], 1243, 1343, 1443",
      "answer0": "1143",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 69,
      "difficulty_id": 1,
      "explanation": "Each number increases by 100, so the term after 1043 is 1043 + 100 = 1143.",
      "hints": ["Find the difference between consecutive numbers.", "Add the same amount to 1043."],
      "source": "Nanyang 2024 P3 Term 1 Review Q5",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Pattern increases by 100. Answer key: 1143."
    },
    {
      "n": 6,
      "type_id": 2,
      "question": "A shirt costs $42. A cap costs $19.40 less than the shirt. How much does the cap cost?\n$[?]",
      "answer0": "22.60",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 83,
      "difficulty_id": 2,
      "explanation": "$42 - $19.40 = $22.60.",
      "hints": ["'Less than' means subtract.", "Subtract $19.40 from $42.00, keeping the decimal points aligned."],
      "source": "Nanyang 2024 P3 Term 1 Review Q6",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer expected in dollars. Answer key: $22.60."
    },
    {
      "n": 7,
      "type_id": 2,
      "question": "An adult ticket to a theme park costs $25.50. A child ticket costs $11.20. How much does a family of 2 adults and 1 child pay?\n$[?]",
      "answer0": "62.20",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 83,
      "difficulty_id": 2,
      "explanation": "2 adults: $25.50 + $25.50 = $51.00. Add 1 child: $51.00 + $11.20 = $62.20.",
      "hints": ["Find the cost of 2 adult tickets first.", "Then add the cost of 1 child ticket."],
      "source": "Nanyang 2024 P3 Term 1 Review Q7",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer expected in dollars. Answer key: $62.20."
    },
    {
      "n": 8,
      "type_id": 2,
      "question": "Ali, Bala, Chang and Dayi went to the zoo. All of them wanted to ride on a pony but the pony could only take 2 of them at a time. How many different ways could they pair up for the ride?\n[?]",
      "answer0": "6",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 3,
      "explanation": "List the pairs: AB, AC, AD, BC, BD, CD. That is 3 + 2 + 1 = 6 different ways.",
      "hints": ["List the pairings systematically without repeating a pair.", "Count pairs that include Ali first, then those starting with Bala, and so on."],
      "source": "Nanyang 2024 P3 Term 1 Review Q8",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Combination/listing problem. Answer key: 6 (3+2+1)."
    },
    {
      "n": 9,
      "type_id": 2,
      "question": "The difference between two numbers is 625. The greater number is 714.\n(a) What is the smaller number?\n(b) What is the sum of the two numbers?",
      "answer0": "89",
      "answer1": "803",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 71,
      "difficulty_id": 2,
      "explanation": "(a) Smaller number = 714 - 625 = 89. (b) Sum = 714 + 89 = 803.",
      "hints": ["(a) The difference is the greater number minus the smaller, so subtract 625 from 714.", "(b) Add the greater number and the smaller number you found."],
      "source": "Nanyang 2024 P3 Term 1 Review Q9",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Two-part question. Answer key: (a) 89, (b) 803."
    }
  ]
}