{
  "paper": {
    "school": "Pei Chun",
    "year": 2023,
    "level": "P3",
    "label": "Weighted Assessment",
    "source_prefix": "Pei Chun 2023 P3 Weighted Assessment",
    "has_answer_key": true,
    "notes": "Source PDF bundles three papers (Term 1 WA pages 1-7, Term 3 Practice pages 8-14, WA2 pages 15-22) + answer keys pages 23-24. This manifest covers ONLY the Term 1 Weighted Assessment (Q1-12), which matches the requested source_prefix. Answers cross-checked against the Term 1 WA key on page 23."
  },
  "questions": [
    {
      "n": 1,
      "type_id": 2,
      "question": "What is the value of the digit 7 in 8751?",
      "answer0": "700",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 66,
      "difficulty_id": 1,
      "explanation": "The digit 7 is in the hundreds place, so its value is 7 x 100 = 700.",
      "hints": ["Identify which place the digit 7 occupies.", "Hundreds place value = digit x 100."],
      "source": "Pei Chun 2023 P3 Weighted Assessment Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 700."
    },
    {
      "n": 2,
      "type_id": 2,
      "question": "How many tens are there in 9260?",
      "answer0": "926",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 66,
      "difficulty_id": 1,
      "explanation": "9260 / 10 = 926 tens.",
      "hints": ["Number of tens = number divided by 10.", "9260 / 10 = 926."],
      "source": "Pei Chun 2023 P3 Weighted Assessment Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 9260 / 10 = 926."
    },
    {
      "n": 3,
      "type_id": 2,
      "question": "Write four thousand and twelve in numerals.",
      "answer0": "4012",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 67,
      "difficulty_id": 1,
      "explanation": "Four thousand and twelve = 4012.",
      "hints": ["Four thousand = 4000.", "Add twelve: 4000 + 12 = 4012."],
      "source": "Pei Chun 2023 P3 Weighted Assessment Q3",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 4012."
    },
    {
      "n": 4,
      "type_id": 2,
      "question": "Arrange the following numbers from the greatest to the smallest.\n5032 , 5302 , 5230",
      "answer0": "5302",
      "answer1": "5230",
      "answer2": "5032",
      "answer3": null,
      "correct_answer": null,
      "skill_id": 68,
      "difficulty_id": 1,
      "explanation": "Comparing: 5302 > 5230 > 5032.",
      "hints": ["Compare the hundreds digit after the thousands.", "Greatest first, smallest last."],
      "source": "Pei Chun 2023 P3 Weighted Assessment Q4",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Ordering task -> FIB, answer0..2 in order greatest to smallest. Key: 5302, 5230, 5032."
    },
    {
      "n": 5,
      "type_id": 2,
      "question": "Find the sum of 8026 and 395.",
      "answer0": "8421",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 70,
      "difficulty_id": 1,
      "explanation": "8026 + 395 = 8421.",
      "hints": ["Sum means add.", "Line up the digits and add."],
      "source": "Pei Chun 2023 P3 Weighted Assessment Q5",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 8026 + 395 = 8421."
    },
    {
      "n": 6,
      "type_id": 2,
      "question": "What is the missing number in the box?\n7320 , 7300 , [?] , 7260 , 7240 , 7220",
      "answer0": "7280",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 69,
      "difficulty_id": 2,
      "explanation": "The pattern decreases by 20 each time: 7300 - 20 = 7280.",
      "hints": ["Find the difference between consecutive numbers.", "Each number is 20 less than the one before."],
      "source": "Pei Chun 2023 P3 Weighted Assessment Q6",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Sequence pattern (-20). Key: 7300 - 20 = 7280."
    },
    {
      "n": 7,
      "type_id": 2,
      "question": "Kaisor had 2364 stamps. Yani had 510 stamps. How many stamps did they have altogether?",
      "answer0": "2874",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 71,
      "difficulty_id": 2,
      "explanation": "2364 + 510 = 2874 stamps.",
      "hints": ["Altogether means add the two amounts.", "2364 + 510 = 2874."],
      "source": "Pei Chun 2023 P3 Weighted Assessment Q7",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 2364 + 510 = 2874."
    },
    {
      "n": 8,
      "type_id": 2,
      "question": "The difference between 2 numbers is 1700. The greater number is 5801. What is the smaller number?",
      "answer0": "4101",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 71,
      "difficulty_id": 2,
      "explanation": "Smaller number = greater number - difference = 5801 - 1700 = 4101.",
      "hints": ["Difference = greater - smaller.", "So smaller = 5801 - 1700."],
      "source": "Pei Chun 2023 P3 Weighted Assessment Q8",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 5801 - 1700 = 4101."
    },
    {
      "n": 9,
      "type_id": 2,
      "question": "Using the digits 1, 8, 2 and 7, form the\n(a) greatest 4-digit even number.\n(b) smallest 4-digit odd number.\nUse each digit once only.",
      "answer0": "8712",
      "answer1": "1287",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 68,
      "difficulty_id": 3,
      "explanation": "(a) Greatest even: end in an even digit, largest first: 8712. (b) Smallest odd: end in an odd digit, smallest first: 1287.",
      "hints": ["Even numbers end in 2 or 8; odd numbers end in 1 or 7.", "For greatest, place larger digits first; for smallest, place smaller digits first."],
      "source": "Pei Chun 2023 P3 Weighted Assessment Q9",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Digits shown in circles in figure but listed in stem, so no image needed. Two-part FIB: answer0=(a), answer1=(b). Key: (a) 8712, (b) 1287."
    },
    {
      "n": 10,
      "type_id": 2,
      "question": "Dash and Luke had the same number of marbles at first. After Luke gave Dash 12 marbles, Dash had 47 marbles. How many marbles did Luke have in the end?",
      "answer0": "23",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 3,
      "explanation": "Dash started with 47 - 12 = 35; both started equal at 35. Luke gave away 12, so Luke had 35 - 12 = 23 marbles.",
      "hints": ["Both had the same amount at first; find Dash's starting amount (47 - 12).", "Luke ends with his starting amount minus the 12 he gave away."],
      "source": "Pei Chun 2023 P3 Weighted Assessment Q10",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 47 - 12 - 12 = 23."
    },
    {
      "n": 11,
      "type_id": 2,
      "question": "A baker baked 594 chocolate doughnuts. He baked 128 more chocolate doughnuts than strawberry doughnuts.\n(a) How many strawberry doughnuts did the baker bake?\n(b) How many doughnuts did the baker bake altogether?",
      "answer0": "466",
      "answer1": "1060",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 71,
      "difficulty_id": 2,
      "explanation": "(a) Strawberry = 594 - 128 = 466. (b) Total = 594 + 466 = 1060.",
      "hints": ["Chocolate is 128 more than strawberry, so strawberry = chocolate - 128.", "Altogether = chocolate + strawberry."],
      "source": "Pei Chun 2023 P3 Weighted Assessment Q11",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Two-part FIB: answer0=(a), answer1=(b). Key: (a) 594-128=466, (b) 594+466=1060."
    },
    {
      "n": 12,
      "type_id": 2,
      "question": "Kiki and Wati saved a total of $8362. Kiki saved $3408.\n(a) How much money did Wati save?\n(b) How much more money did Wati save than Kiki?",
      "answer0": "$4954",
      "answer1": "$1546",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 71,
      "difficulty_id": 2,
      "explanation": "(a) Wati = 8362 - 3408 = $4954. (b) 4954 - 3408 = $1546.",
      "hints": ["Wati's savings = total - Kiki's savings.", "How much more = Wati's - Kiki's."],
      "source": "Pei Chun 2023 P3 Weighted Assessment Q12",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Two-part FIB: answer0=(a), answer1=(b). Key: (a) 8362-3408=$4954, (b) 4954-3408=$1546. Whole-dollar amounts despite money context (skill 71 add/sub up to 4 digits)."
    }
  ]
}