{
  "paper": {
    "school": "ACS Junior",
    "year": 2025,
    "level": "P3",
    "label": "Weighted Assessment 1",
    "source_prefix": "ACS Junior 2025 P3 Weighted Assessment 1",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "What is the value of the digit 7 in 3875?",
      "answer0": "700",
      "answer1": "100",
      "answer2": "70",
      "answer3": "10",
      "correct_answer": 2,
      "skill_id": 66,
      "difficulty_id": 1,
      "explanation": "The digit 7 sits in the tens place of 3875. Its value is 7 tens = 70. Answer: 70.",
      "hints": ["Identify which place the 7 is in: ones, tens, hundreds or thousands.", "7 is in the tens place, so its value is 7 x 10."],
      "source": "ACS Junior 2025 P3 Weighted Assessment 1 Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key option (3) = 70."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "5207 = 5 thousands + [?] + 7 ones",
      "answer0": "2000",
      "answer1": "2",
      "answer2": "200",
      "answer3": "20",
      "correct_answer": 2,
      "skill_id": 66,
      "difficulty_id": 1,
      "explanation": "5207 = 5 thousands + 2 hundreds + 0 tens + 7 ones. The missing part is 2 hundreds = 200. Answer: 200.",
      "hints": ["Break 5207 into thousands, hundreds, tens and ones.", "5 thousands = 5000 and 7 ones = 7, so the remaining 200 is the hundreds part."],
      "source": "ACS Junior 2025 P3 Weighted Assessment 1 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Original blank shown as a fill line; rendered as [?] within the MCQ stem. Key option (3) = 200."
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "What is the total cost of 8 twenty-cent stamps and 7 fifty-cent stamps?",
      "answer0": "$1.50",
      "answer1": "$5.10",
      "answer2": "$8.50",
      "answer3": "$15.70",
      "correct_answer": 1,
      "skill_id": 82,
      "difficulty_id": 2,
      "explanation": "8 x 20c = 160c. 7 x 50c = 350c. Total = 160 + 350 = 510c = $5.10. Answer: $5.10.",
      "hints": ["Find the cost of the twenty-cent stamps and the fifty-cent stamps separately.", "8 x 20c = 160c and 7 x 50c = 350c; add them, then convert cents to dollars."],
      "source": "ACS Junior 2025 P3 Weighted Assessment 1 Q3",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key option (2) = $5.10."
    },
    {
      "n": 4,
      "type_id": 1,
      "question": "What are the missing numbers in the number pattern?\n3448, 3488, 3528, 3568, [?], [?], 3688",
      "answer0": "3578, 3588",
      "answer1": "3588, 3608",
      "answer2": "3598, 3628",
      "answer3": "3608, 3648",
      "correct_answer": 3,
      "skill_id": 69,
      "difficulty_id": 2,
      "explanation": "The pattern increases by 40 each time (3448, 3488, 3528, 3568...). Next terms: 3568 + 40 = 3608, then 3608 + 40 = 3648 (and 3648 + 40 = 3688, which matches). Answer: 3608, 3648.",
      "hints": ["Find the difference between consecutive terms.", "Each term increases by 40, so add 40 twice from 3568."],
      "source": "ACS Junior 2025 P3 Weighted Assessment 1 Q4",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key option (4) = 3608, 3648. Stem keeps the printed sequence with [?] at each blank for context; answers are full MCQ option texts."
    },
    {
      "n": 5,
      "type_id": 1,
      "question": "The sum of two numbers is 3480. One of the numbers is 1207. What is the difference between the 2 numbers?",
      "answer0": "1066",
      "answer1": "2273",
      "answer2": "4687",
      "answer3": "5894",
      "correct_answer": 0,
      "skill_id": 71,
      "difficulty_id": 2,
      "explanation": "The other number = 3480 - 1207 = 2273. Difference = 2273 - 1207 = 1066. Answer: 1066.",
      "hints": ["First find the second number by subtracting 1207 from the sum.", "Then subtract the smaller number from the larger to get the difference."],
      "source": "ACS Junior 2025 P3 Weighted Assessment 1 Q5",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key option (1) = 1066."
    },
    {
      "n": 6,
      "type_id": 2,
      "question": "Arrange the following numbers in decreasing order.\n4098, 4890, 4089\n[?], [?], [?]",
      "answer0": "4890",
      "answer1": "4098",
      "answer2": "4089",
      "answer3": null,
      "correct_answer": null,
      "skill_id": 68,
      "difficulty_id": 1,
      "explanation": "Decreasing order means largest to smallest. Compare digit by digit: 4890 > 4098 > 4089. Answer: 4890, 4098, 4089.",
      "hints": ["Decreasing means from biggest to smallest.", "Compare the hundreds and tens digits: 8 hundreds > 0 hundreds; then 9 tens > 8 tens."],
      "source": "ACS Junior 2025 P3 Weighted Assessment 1 Q6",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Ordering task converted to FIB, one blank per position. Key: 4390 is a typo in the key for 4890 (only 4098, 4890, 4089 were given to order); correct decreasing order is 4890, 4098, 4089."
    },
    {
      "n": 7,
      "type_id": 2,
      "question": "Find the sum of 5999 and 201.",
      "answer0": "6200",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 70,
      "difficulty_id": 1,
      "explanation": "5999 + 201 = 6200. Answer: 6200.",
      "hints": ["Add the two numbers using column addition.", "5999 + 1 = 6000, then add the remaining 200 to get 6200."],
      "source": "ACS Junior 2025 P3 Weighted Assessment 1 Q7",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 5999 + 201 = 6200."
    },
    {
      "n": 8,
      "type_id": 2,
      "question": "What is the missing number in the box?\n3 [?] 0 1 - 1 4 7 3 = 2 0 2 8",
      "answer0": "5",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 70,
      "difficulty_id": 2,
      "explanation": "The subtraction is 3_01 - 1473 = 2028. Reverse it: 2028 + 1473 = 3501, so the missing digit (hundreds place) is 5. Answer: 5.",
      "hints": ["Add the answer and the number subtracted to recover the top number.", "2028 + 1473 = 3501, so the boxed hundreds digit is 5."],
      "source": "ACS Junior 2025 P3 Weighted Assessment 1 Q8",
      "image_needed": true,
      "image_options": false,
      "image_file": "q8.png",
      "image_page": 6,
      "image_bbox": [0.40, 0.15, 0.68, 0.27],
      "image_loc": "centre-upper part of page, a vertical column-subtraction layout (3 [box] 0 1 minus 1 4 7 3 = 2 0 2 8)",
      "notes": "Column-subtraction figure with the missing hundreds digit boxed. Key: 3501 - 1473 = 2028, missing digit = 5."
    },
    {
      "n": 9,
      "type_id": 2,
      "question": "Gerry bought a plate of Nasi Lemak and a bowl of Laksa. She gave the cashier $20. How much change did she receive?\n$[?]",
      "answer0": "2.80",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 83,
      "difficulty_id": 2,
      "explanation": "Nasi Lemak $7.80 + Laksa $9.40 = $17.20. Change = $20 - $17.20 = $2.80. Answer: $2.80.",
      "hints": ["First add the prices of the two dishes from the menu.", "Then subtract the total from $20 to find the change."],
      "source": "ACS Junior 2025 P3 Weighted Assessment 1 Q9",
      "image_needed": true,
      "image_options": false,
      "image_file": "q9.png",
      "image_page": 7,
      "image_bbox": [0.27, 0.15, 0.78, 0.30],
      "image_loc": "top of page, the 'Local Delights Menu' price table listing 5 dishes (shared with Q10)",
      "notes": "Needs the menu price table. Nasi Lemak $7.80, Laksa $9.40. Key: 7.80 + 9.40 = 17.20; 20 - 17.20 = $2.80."
    },
    {
      "n": 10,
      "type_id": 2,
      "question": "Faith had $16. She bought two different dishes from the food stall. Which two possible dishes could she buy? How much did she spend?\nDishes: [?] and [?]\nAmount spent: $[?]",
      "answer0": "Fishball Noodles",
      "answer1": "Nasi Lemak",
      "answer2": "15.10",
      "answer3": null,
      "correct_answer": null,
      "skill_id": 83,
      "difficulty_id": 3,
      "explanation": "Pick two different dishes whose total does not exceed $16. Fishball Noodles $7.30 + Nasi Lemak $7.80 = $15.10, which is within $16. Answer: Fishball Noodles and Nasi Lemak, $15.10.",
      "hints": ["Find a pair of different dishes whose prices add up to $16 or less.", "Fishball Noodles ($7.30) + Nasi Lemak ($7.80) = $15.10."],
      "source": "ACS Junior 2025 P3 Weighted Assessment 1 Q10",
      "image_needed": true,
      "image_options": false,
      "image_file": "q10.png",
      "image_page": 7,
      "image_bbox": [0.27, 0.15, 0.78, 0.30],
      "image_loc": "top of page, the 'Local Delights Menu' price table listing 5 dishes (shared with Q9)",
      "notes": "Open-ended: multiple valid pairs exist; key gives Fishball Noodles + Nasi Lemak = $15.10. Other valid combos possible (e.g. Fishball Noodles + Fried Rice = $15.80). Stem keeps the worded answer (dish names) because the example answer is a name pair; the amount blank is numeric. Needs same menu table as Q9."
    },
    {
      "n": 11,
      "type_id": 2,
      "question": "The difference between two numbers is 198. The smaller number is 257. Find the sum of the two numbers.",
      "answer0": "712",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 71,
      "difficulty_id": 2,
      "explanation": "Larger number = 257 + 198 = 455. Sum = 257 + 455 = 712. Answer: 712.",
      "hints": ["Find the larger number by adding the difference to the smaller number.", "257 + 198 = 455, then add 257 + 455."],
      "source": "ACS Junior 2025 P3 Weighted Assessment 1 Q11",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 257 + 198 = 455; 257 + 455 = 712."
    },
    {
      "n": 12,
      "type_id": 2,
      "question": "Joan bought a handbag for $85.20. She bought a coin pouch that cost $24.80 less than the handbag. How much money did she spend on the handbag and coin pouch altogether?\n$[?]",
      "answer0": "145.60",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 83,
      "difficulty_id": 2,
      "explanation": "Coin pouch = $85.20 - $24.80 = $60.40. Total = $85.20 + $60.40 = $145.60. Answer: $145.60.",
      "hints": ["First find the cost of the coin pouch ($24.80 less than the handbag).", "85.20 - 24.80 = 60.40, then add it to the handbag price."],
      "source": "ACS Junior 2025 P3 Weighted Assessment 1 Q12",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 85.20 - 24.80 = 60.40; 85.20 + 60.40 = 145.60."
    },
    {
      "n": 13,
      "type_id": 2,
      "question": "A watch usually cost $176.20. Annie bought 2 watches for $305.50 during a sale. How much money did she save altogether?\n$[?]",
      "answer0": "46.90",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 83,
      "difficulty_id": 3,
      "explanation": "Usual cost of 2 watches = $176.20 + $176.20 = $352.40. Saving = $352.40 - $305.50 = $46.90. Answer: $46.90.",
      "hints": ["Find the usual price of 2 watches first.", "176.20 x 2 = 352.40, then subtract the sale price 305.50."],
      "source": "ACS Junior 2025 P3 Weighted Assessment 1 Q13",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 176.20 + 176.20 = 352.40; 352.40 - 305.50 = $46.90."
    }
  ]
}