{
  "paper": {
    "school": "St Hilda's Primary School",
    "year": 2025,
    "level": "P3",
    "label": "Weighted Assessment 2",
    "source_prefix": "St Hilda 2025 P3 Weighted Assessment 2",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "9 hundreds × 4 = [?]",
      "answer0": "36",
      "answer1": "360",
      "answer2": "904",
      "answer3": "3600",
      "correct_answer": 3,
      "skill_id": 66,
      "difficulty_id": 1,
      "explanation": "9 hundreds = 900. 900 × 4 = 3600. The answer is 3600.",
      "hints": ["9 hundreds means 900.", "Multiply 900 by 4."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 4 (3600). Stem has a blank box after the equals sign; kept as one [?] before options."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "Divide 609 by 3.",
      "answer0": "23",
      "answer1": "203",
      "answer2": "230",
      "answer3": "606",
      "correct_answer": 1,
      "skill_id": 75,
      "difficulty_id": 1,
      "explanation": "609 ÷ 3: 6 ÷ 3 = 2 (hundreds), 0 ÷ 3 = 0 (tens), 9 ÷ 3 = 3 (ones), giving 203.",
      "hints": ["Divide digit by digit from the left.", "6÷3=2, 0÷3=0, 9÷3=3."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 2 (203)."
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "The bar graph shows the number of storybooks sold by a bookshop from May to September. How many storybooks were sold in June?",
      "answer0": "102",
      "answer1": "120",
      "answer2": "130",
      "answer3": "180",
      "correct_answer": 1,
      "skill_id": 102,
      "difficulty_id": 1,
      "explanation": "Read the height of the June (Jun) bar on the graph: it reaches 120. So 120 storybooks were sold in June.",
      "hints": ["Find the bar labelled Jun.", "Read its value off the vertical axis (scale of 50)."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q3",
      "image_needed": true,
      "image_options": false,
      "image_file": "q3.png",
      "image_page": 2,
      "image_bbox": [0.22, 0.20, 0.85, 0.44],
      "image_loc": "bar graph below the question, upper-middle of page",
      "notes": "Key: option 2 (120)."
    },
    {
      "n": 4,
      "type_id": 1,
      "question": "Mr Lee paid $75.80 for his electricity bill in March. He paid $12.45 less for his electricity bill in March than in April. How much was his electricity bill in April?",
      "answer0": "$63.35",
      "answer1": "$87.25",
      "answer2": "$88.20",
      "answer3": "$88.25",
      "correct_answer": 3,
      "skill_id": 83,
      "difficulty_id": 2,
      "explanation": "March was $12.45 less than April, so April = March + $12.45 = $75.80 + $12.45 = $88.25.",
      "hints": ["March is the smaller amount.", "Add $12.45 to the March bill to get April."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q4",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 4 ($88.25)."
    },
    {
      "n": 5,
      "type_id": 1,
      "question": "Identify a pair of perpendicular lines in the figure.",
      "answer0": "AB ⊥ FE",
      "answer1": "AH ⊥ BC",
      "answer2": "BC ⊥ CD",
      "answer3": "FG ⊥ ED",
      "correct_answer": 2,
      "skill_id": 100,
      "difficulty_id": 2,
      "explanation": "BC runs vertically along the right side and CD runs horizontally along the bottom; they meet at C at a right angle, so BC ⊥ CD.",
      "hints": ["Perpendicular lines meet at a right angle (90°).", "Look at the corner at C."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q5",
      "image_needed": true,
      "image_options": false,
      "image_file": "q5.png",
      "image_page": 3,
      "image_bbox": [0.30, 0.32, 0.70, 0.52],
      "image_loc": "labelled grid figure (A B ... H G D C) below the question",
      "notes": "Key: option 3 (BC ⊥ CD)."
    },
    {
      "n": 6,
      "type_id": 1,
      "question": "Which of the following marked angles is/are greater than a right angle?",
      "answer0": "(a), (b) and (c)",
      "answer1": "(a) and (b)",
      "answer2": "(c)",
      "answer3": "(d)",
      "correct_answer": 1,
      "skill_id": 99,
      "difficulty_id": 2,
      "explanation": "Compare each marked angle to a right angle (90°). Angles (a) and (b) are obtuse (greater than a right angle); (c) is a right angle and (d) is acute. So the answer is (a) and (b).",
      "hints": ["A right angle is exactly 90°, like a square corner.", "Obtuse angles open wider than a square corner."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q6",
      "image_needed": true,
      "image_options": false,
      "image_file": "q6.png",
      "image_page": 4,
      "image_bbox": [0.24, 0.16, 0.78, 0.50],
      "image_loc": "four labelled angle figures (a)(b)(c)(d) in a 2x2 layout above the options",
      "notes": "Key: option 2 ((a) and (b)). The figure shows all four angles; needs the full 2x2 set."
    },
    {
      "n": 7,
      "type_id": 1,
      "question": "The length of Rope A is 5 times as long as Rope B. Rope B is 32 cm shorter than Rope A. What is the length of Rope A?",
      "answer0": "37 cm",
      "answer1": "40 cm",
      "answer2": "48 cm",
      "answer3": "160 cm",
      "correct_answer": 1,
      "skill_id": 76,
      "difficulty_id": 3,
      "explanation": "Rope A = 5 units, Rope B = 1 unit. The difference is 5 − 1 = 4 units = 32 cm, so 1 unit = 8 cm. Rope A = 5 × 8 = 40 cm.",
      "hints": ["Let Rope B be 1 unit, then Rope A is 5 units.", "The 4-unit difference equals 32 cm."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q7",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 2 (40 cm)."
    },
    {
      "n": 8,
      "type_id": 1,
      "question": "The table shows how Kathy spent her money (Pencil Case $7, Magazine $15, Toys $20, Storybook $15). Which of the following bar graphs best represents Kathy's spending shown in the table?",
      "answer0": "Graph 1",
      "answer1": "Graph 2",
      "answer2": "Graph 3",
      "answer3": "Graph 4",
      "correct_answer": 2,
      "skill_id": 102,
      "difficulty_id": 2,
      "explanation": "The bars must be Pencil Case = 7 (shortest), Magazine = 15, Toys = 20 (tallest), Storybook = 15 (equal to Magazine). Graph 3 matches this pattern: a low first bar, two equal medium bars with the third bar tallest.",
      "hints": ["Toys ($20) must be the tallest bar.", "Magazine and Storybook are both $15, so those bars are equal."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q8",
      "image_needed": true,
      "image_options": true,
      "image_file": null,
      "image_page": 5,
      "image_bbox": [0.20, 0.28, 0.85, 0.65],
      "image_loc": "four candidate bar graphs labelled (1)-(4) in a 2x2 layout below the spending table",
      "notes": "Key: option 3 (Graph 3). image_options true: each option is a bar-graph picture; crop options to q8_opt0.png..q8_opt3.png. The data table itself should also be visible/cropped with the question."
    },
    {
      "n": 9,
      "type_id": 2,
      "question": "Find the product of 327 and 9.",
      "answer0": "2943",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 75,
      "difficulty_id": 1,
      "explanation": "327 × 9 = (300 × 9) + (27 × 9) = 2700 + 243 = 2943.",
      "hints": ["Product means multiply.", "Multiply 327 by 9 column by column with carrying."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q9",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 2943."
    },
    {
      "n": 10,
      "type_id": 2,
      "question": "The sum of two numbers is 400. The smaller number is 120. What is the difference between the two numbers?",
      "answer0": "160",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 71,
      "difficulty_id": 2,
      "explanation": "The larger number = 400 − 120 = 280. The difference = 280 − 120 = 160.",
      "hints": ["First find the larger number from the sum.", "Then subtract the smaller from the larger."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q10",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 160."
    },
    {
      "n": 11,
      "type_id": 2,
      "question": "How many right angles are there inside the shape?",
      "answer0": "3",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 99,
      "difficulty_id": 2,
      "explanation": "The arrow (pentagon-like) shape has 3 corners that form right angles (the two corners where the shaft meets the back edge and one more square corner). Counting them gives 3 right angles.",
      "hints": ["A right angle looks like a square corner.", "Check each interior corner of the arrow shape."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q11",
      "image_needed": true,
      "image_options": false,
      "image_file": "q11.png",
      "image_page": 6,
      "image_bbox": [0.22, 0.66, 0.50, 0.80],
      "image_loc": "left-pointing arrow shape below the question, lower-left of page",
      "notes": "Key: 3 right angles. Count-to-verify: figure must show the whole arrow."
    },
    {
      "n": 12,
      "type_id": 2,
      "question": "The picture graph shows the number of books borrowed by students in their class library, where each symbol stands for 6 books. How many Science Fiction books were borrowed? [?]",
      "answer0": "18",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 64,
      "difficulty_id": 2,
      "explanation": "Science Fiction shows 3 book symbols, and each symbol stands for 6 books: 3 × 6 = 18 books.",
      "hints": ["Each picture symbol represents 6 books.", "Count the Science Fiction symbols and multiply by 6."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q12",
      "image_needed": true,
      "image_options": false,
      "image_file": "q12.png",
      "image_page": 7,
      "image_bbox": [0.24, 0.16, 0.78, 0.43],
      "image_loc": "picture graph table (Adventure / Fairy Tales / Mystery / Science Fiction) near top of page",
      "notes": "Original task asks to DRAW the Science Fiction bar; converted to FIB for the value. Answer-key marked-up graph shows the Science Fiction bar drawn to 18. Use the picture-graph crop (the upper figure with the book symbols), not the lower bar-graph the student draws on."
    },
    {
      "n": 13,
      "type_id": 0,
      "question": "Draw a line perpendicular to the line AB in the grid. Label the line drawn as CD.",
      "answer0": null,
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 101,
      "difficulty_id": 2,
      "explanation": "On the square grid, draw a straight line CD that meets line AB at a right angle (90°). AB goes diagonally; CD must cross it forming a perpendicular (square-corner) intersection, e.g. along the opposite diagonal of the grid squares.",
      "hints": ["Perpendicular lines meet at 90°.", "Use the grid squares to keep the right angle accurate."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q13",
      "image_needed": true,
      "image_options": false,
      "image_file": "q13.png",
      "image_page": 8,
      "image_bbox": [0.24, 0.18, 0.80, 0.50],
      "image_loc": "square grid with diagonal line AB drawn, upper-middle of page",
      "notes": "Interactive draw-on-grid task: type_id 0 (skipped on insert). Answer key shows a perpendicular line CD drawn through AB."
    },
    {
      "n": 14,
      "type_id": 2,
      "question": "A box can contain a maximum of 8 cupcakes. There are a total of 103 cupcakes to be packed into boxes. What is the least number of boxes needed to pack all the cupcakes?",
      "answer0": "13",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 74,
      "difficulty_id": 2,
      "explanation": "103 ÷ 8 = 12 remainder 7. The 12 full boxes hold 96 cupcakes, leaving 7 cupcakes that still need 1 more box. So 12 + 1 = 13 boxes.",
      "hints": ["Divide 103 by 8 and look at the remainder.", "The leftover cupcakes still need one more box."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q14",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 13. Division-with-remainder, round up."
    },
    {
      "n": 15,
      "type_id": 2,
      "question": "Sue saved $96 each month. Tim saved 4 times as much as Sue each month. How much would Tim save in 5 months?",
      "answer0": "$1920",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "Tim saves 4 × $96 = $384 each month. In 5 months he saves $384 × 5 = $1920.",
      "hints": ["First find how much Tim saves in one month.", "Then multiply by 5 months."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q15",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: $1920."
    },
    {
      "n": 16,
      "type_id": 2,
      "question": "Look at the marked angles a, b and c in the figure. Arrange the angles in order of size, beginning with the greatest: [?], [?], [?]",
      "answer0": "c",
      "answer1": "a",
      "answer2": "b",
      "answer3": null,
      "correct_answer": null,
      "skill_id": 99,
      "difficulty_id": 2,
      "explanation": "Comparing the marked angles in the quadrilateral, angle c is the largest (obtuse), angle a is next (about a right angle), and angle b is the smallest (acute). Greatest to smallest: c, a, b.",
      "hints": ["A bigger opening means a bigger angle.", "Compare each to a right angle (square corner)."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q16",
      "image_needed": true,
      "image_options": false,
      "image_file": "q16.png",
      "image_page": 9,
      "image_bbox": [0.26, 0.55, 0.50, 0.70],
      "image_loc": "quadrilateral with marked angles a (top-left), b (top-right), c (bottom-right)",
      "notes": "Key: c, a, b (greatest first). Ordering converted to 3-blank FIB in order."
    },
    {
      "n": 17,
      "type_id": 1,
      "question": "The bar graph shows the number of muffins sold at Delicious Café last week (Coffee 20, Strawberry 50, Chocolate 60, Vanilla 30, Banana 40). Which statement is correct? (a) The number of vanilla muffins sold is half the number of chocolate muffins sold. (b) The number of strawberry muffins sold is the same as the total number of coffee muffins and banana muffins sold.",
      "answer0": "(a) is True and (b) is True",
      "answer1": "(a) is True and (b) is False",
      "answer2": "(a) is False and (b) is True",
      "answer3": "(a) is False and (b) is False",
      "correct_answer": 1,
      "skill_id": 104,
      "difficulty_id": 2,
      "explanation": "(a) Vanilla = 30, Chocolate = 60; 30 is half of 60, so (a) is True. (b) Strawberry = 50; Coffee + Banana = 20 + 40 = 60, which is not 50, so (b) is False. Therefore (a) True and (b) False.",
      "hints": ["Read each bar's value off the scale.", "Check half of chocolate, and add coffee plus banana."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q17",
      "image_needed": true,
      "image_options": false,
      "image_file": "q17.png",
      "image_page": 10,
      "image_bbox": [0.24, 0.18, 0.82, 0.46],
      "image_loc": "muffins-sold bar graph below the question, upper part of page",
      "notes": "Key: 17a True, 17b False. Two-part true/false table converted to one MCQ over the True/False combinations; correct = option 2 (a True, b False)."
    },
    {
      "n": 18,
      "type_id": 2,
      "question": "Mrs Tan prepared some bags of snacks for a birthday party. There were 4 buns and 7 sweets in each bag. There was a total of 60 buns in the bags. How many sweets were there altogether?",
      "answer0": "105",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "Number of bags = 60 buns ÷ 4 buns per bag = 15 bags. Sweets = 15 bags × 7 sweets = 105 sweets.",
      "hints": ["First find how many bags there are from the buns.", "Then multiply the number of bags by 7 sweets."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q18",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key working: 60÷4 (printed as 14, but 60÷4=15) then 15×7=105. Final answer 105 sweets — confirmed by key's 15×7=105."
    },
    {
      "n": 19,
      "type_id": 2,
      "question": "Weiming had 472 more stamps than Ali. Ali bought another 27 stamps. Weiming then had 6 times as many stamps as Ali. How many stamps did Ali have in the end? [?] How many stamps did Weiming have? [?]",
      "answer0": "89",
      "answer1": "534",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 3,
      "explanation": "After Ali buys 27 stamps, Weiming has 6 times Ali's amount, so the difference (5 units) equals the new gap. Original gap was 472; after Ali adds 27, the gap is 472 − 27 = 445 = 5 units. Ali (1 unit) = 445 ÷ 5 = 89 stamps in the end. Weiming = 89 × 6 = 534 stamps.",
      "hints": ["After Ali buys 27, the difference between them shrinks by 27.", "That difference equals 5 equal units (6 units − 1 unit)."],
      "source": "St Hilda 2025 P3 Weighted Assessment 2 Q19",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: a) 89, b) 534. Two-part question combined into a 2-blank FIB (Ali end = 89, Weiming = 534)."
    }
  ]
}
