{
  "paper": {
    "school": "Tao Nan",
    "year": 2024,
    "level": "P3",
    "label": "Weighted Assessment 2",
    "source_prefix": "Tao Nan 2024 P3 Weighted Assessment 2",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "What is the missing number in the equation?\n0 x 7 = 8 - [?]",
      "answer0": "1",
      "answer1": "0",
      "answer2": "7",
      "answer3": "8",
      "correct_answer": 3,
      "skill_id": 73,
      "difficulty_id": 1,
      "explanation": "0 x 7 = 0, so 8 - [?] = 0, which means [?] = 8. The answer is 8.",
      "hints": ["Any number multiplied by 0 equals 0.", "Find the number that makes 8 - [?] = 0."],
      "source": "Tao Nan 2024 P3 Weighted Assessment 2 Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key Q1 = option 4 (value 8)."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "Which of the following is the same as 8903?",
      "answer0": "800 + 90 + 3",
      "answer1": "800 + 900 + 3",
      "answer2": "8000 + 90 + 3",
      "answer3": "8000 + 900 + 3",
      "correct_answer": 3,
      "skill_id": 66,
      "difficulty_id": 1,
      "explanation": "8903 = 8 thousands + 9 hundreds + 0 tens + 3 ones = 8000 + 900 + 3.",
      "hints": ["Break 8903 into thousands, hundreds, tens and ones.", "8903 = 8000 + 900 + 0 + 3."],
      "source": "Tao Nan 2024 P3 Weighted Assessment 2 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key Q2 = option 4 (8000 + 900 + 3)."
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "Monica started watching a movie at 4.15 p.m. and ended at 6.05 p.m. What is the duration of the movie?",
      "answer0": "1 h 40 min",
      "answer1": "1 h 45 min",
      "answer2": "1 h 50 min",
      "answer3": "1 h 55 min",
      "correct_answer": 2,
      "skill_id": 92,
      "difficulty_id": 2,
      "explanation": "From 4.15 p.m. to 6.15 p.m. is 2 h. From 6.05 p.m. back 10 min: 4.15 to 6.05 = 1 h 50 min (4.15 to 5.15 is 1 h, then 5.15 to 6.05 is 50 min).",
      "hints": ["Count whole hours first from 4.15 to 5.15.", "Then count the remaining minutes up to 6.05."],
      "source": "Tao Nan 2024 P3 Weighted Assessment 2 Q3",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key Q3 = option 3 (1 h 50 min)."
    },
    {
      "n": 4,
      "type_id": 1,
      "question": "Which one of the following figures is 1/4 shaded?",
      "answer0": "Figure 1",
      "answer1": "Figure 2",
      "answer2": "Figure 3",
      "answer3": "Figure 4",
      "correct_answer": 0,
      "skill_id": 78,
      "difficulty_id": 2,
      "explanation": "Each figure has 10 equal squares. One quarter shaded means a fraction equal to 1/4. Figure 1 has the shaded squares forming 1/4 of the whole (matching the key).",
      "hints": ["Count the total number of equal parts in each figure.", "1/4 means 1 out of every 4 equal parts is shaded."],
      "source": "Tao Nan 2024 P3 Weighted Assessment 2 Q4",
      "image_needed": true,
      "image_options": true,
      "image_page": 4,
      "image_loc": "top of page, four labelled grid options (1)-(4) in two rows below the question",
      "image_bbox": [0.13, 0.14, 0.90, 0.34],
      "image_file": null,
      "notes": "Key Q4 = option 1. Image-option MCQ: each option is a shaded-grid figure; crop each option q4_opt0..q4_opt3.png."
    },
    {
      "n": 5,
      "type_id": 1,
      "question": "How many minutes are there in 3 h 40 min?",
      "answer0": "120 min",
      "answer1": "190 min",
      "answer2": "220 min",
      "answer3": "230 min",
      "correct_answer": 2,
      "skill_id": 91,
      "difficulty_id": 1,
      "explanation": "3 h = 3 x 60 = 180 min. 180 min + 40 min = 220 min.",
      "hints": ["1 hour = 60 minutes.", "Multiply the hours by 60, then add the extra minutes."],
      "source": "Tao Nan 2024 P3 Weighted Assessment 2 Q5",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key Q5 = option 3 (220 min)."
    },
    {
      "n": 6,
      "type_id": 2,
      "question": "Mr. Tay used 9 toothpicks to form a figure. How many of such figures can he form with 70 toothpicks?\n[?]",
      "answer0": "7",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 74,
      "difficulty_id": 2,
      "explanation": "70 div 9 = 7 remainder 7. He can form 7 complete figures (7 toothpicks are left over).",
      "hints": ["Divide 70 by 9.", "Only complete figures count; ignore the remainder."],
      "source": "Tao Nan 2024 P3 Weighted Assessment 2 Q6",
      "image_needed": true,
      "image_options": false,
      "image_page": 5,
      "image_loc": "middle of upper half, cube-like toothpick figure below the question",
      "image_bbox": [0.38, 0.24, 0.58, 0.36],
      "image_file": null,
      "notes": "Key Q6 = 7 toothpicks (answer is 7 figures). Division with remainder."
    },
    {
      "n": 7,
      "type_id": 2,
      "question": "What is the smallest four-digit even number that can be formed with the given digits?\n0, 5, 2, 4\n[?]",
      "answer0": "2054",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 66,
      "difficulty_id": 3,
      "explanation": "For the smallest number, the leading digit cannot be 0; use the next smallest, 2. For an even number, the last digit must be even (0, 2 or 4). Arranging the rest smallest first with an even ones digit: 2054.",
      "hints": ["The first digit cannot be 0 for a four-digit number.", "An even number ends in 0, 2, 4, 6 or 8 - here choose 0, 2 or 4 for the ones place."],
      "source": "Tao Nan 2024 P3 Weighted Assessment 2 Q7",
      "image_needed": true,
      "image_options": false,
      "image_page": 5,
      "image_loc": "lower half, four star shapes each containing a digit (0, 5, 2, 4)",
      "image_bbox": [0.10, 0.58, 0.87, 0.72],
      "image_file": null,
      "notes": "Key Q7 = 2054. Digits 0,5,2,4 shown inside star shapes; the four digits are stated in the stem so the figure is decorative."
    },
    {
      "n": 8,
      "type_id": 2,
      "question": "Mrs. Lim formed the figures using identical sticks. How many of such sticks are needed to form the 7th figure?\n[?]",
      "answer0": "22",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 69,
      "difficulty_id": 2,
      "explanation": "The 1st figure uses 4 sticks; each later figure adds 3 sticks (4, 7, 10, 13, ...). The nth figure needs 3n + 1 sticks. For the 7th figure: 3 x 7 + 1 = 22.",
      "hints": ["Count the sticks in the 1st, 2nd and 3rd figures to find the pattern.", "Each new figure adds the same number of sticks."],
      "source": "Tao Nan 2024 P3 Weighted Assessment 2 Q8",
      "image_needed": true,
      "image_options": false,
      "image_page": 6,
      "image_loc": "upper half, growing stacks of squares labelled 1st, 2nd, 3rd, 4th ... 7th",
      "image_bbox": [0.17, 0.15, 0.82, 0.37],
      "image_file": null,
      "notes": "Key Q8 = 22. Stick pattern: 4, 7, 10, 13 ... (3n + 1)."
    },
    {
      "n": 9,
      "type_id": 2,
      "question": "Arrange the following numbers from the smallest to the greatest.\n7937, 3797, 7397, 3977\n[?], [?], [?], [?]",
      "answer0": "3797",
      "answer1": "3977",
      "answer2": "7397",
      "answer3": "7937",
      "correct_answer": null,
      "skill_id": 68,
      "difficulty_id": 2,
      "explanation": "Compare by place value from the thousands. 3797 and 3977 start with 3; 3797 < 3977. 7397 and 7937 start with 7; 7397 < 7937. Order: 3797, 3977, 7397, 7937.",
      "hints": ["Compare the thousands digit first.", "If thousands are equal, compare the hundreds digit, then tens."],
      "source": "Tao Nan 2024 P3 Weighted Assessment 2 Q9",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key Q9 = 3797, 3977, 7397, 7937 (smallest to greatest). Ordering task -> FIB with one blank per position."
    },
    {
      "n": 10,
      "type_id": 2,
      "question": "Find the missing fraction in the box.\n1/12, 1/4, 5/12, [?], 3/4",
      "answer0": "7/12",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 79,
      "difficulty_id": 2,
      "explanation": "Express all as twelfths: 1/12, 3/12, 5/12, ?, 9/12. The pattern increases by 2/12 each step, so the missing fraction is 7/12.",
      "hints": ["Rewrite every fraction with a denominator of 12.", "Find how much each fraction increases by along the number line."],
      "source": "Tao Nan 2024 P3 Weighted Assessment 2 Q10",
      "image_needed": true,
      "image_options": false,
      "image_page": 7,
      "image_loc": "upper third, a number line with fractions marked at intervals and an empty box for the missing value",
      "image_bbox": [0.20, 0.11, 0.78, 0.24],
      "image_file": null,
      "notes": "Key Q10 = 7/12. Number line shows 1/12, 1/4, 5/12, [box], 3/4; the values are given in the stem so the figure is supporting."
    },
    {
      "n": 11,
      "type_id": 0,
      "question": "Look at the figure carefully. Then, copy the same figure on the dot grid provided on the right.",
      "answer0": null,
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 101,
      "difficulty_id": 2,
      "explanation": "Copy the H-shaped figure dot-for-dot onto the blank dot grid, keeping the same number of dots between each line segment.",
      "hints": ["Count grid spaces for each line before drawing.", "Match the start and end dots of every segment."],
      "source": "Tao Nan 2024 P3 Weighted Assessment 2 Q11",
      "image_needed": true,
      "image_options": false,
      "image_page": 7,
      "image_loc": "lower half, left dot grid contains an H-shaped figure; right dot grid is blank for copying",
      "image_bbox": [0.10, 0.55, 0.55, 0.80],
      "image_file": null,
      "notes": "Drawing/copying task on a dot grid - no value answer. type_id 0 (skipped on insert). Key Q11 = reproduce the H-figure."
    },
    {
      "n": 12,
      "type_id": 1,
      "question": "Joey bought a skipping rope and another item. He spent a total of $70. What was the other item bought?",
      "answer0": "Basketball",
      "answer1": "Badminton Racket",
      "answer2": "Soccer Ball",
      "answer3": "Skipping Rope",
      "correct_answer": 2,
      "skill_id": 83,
      "difficulty_id": 2,
      "explanation": "Skipping rope costs $15.35. Other item = $70 - $15.35 = $54.65, which is the price of the Soccer Ball.",
      "hints": ["Subtract the skipping rope's price from $70.", "Match the result to a price on the price board."],
      "source": "Tao Nan 2024 P3 Weighted Assessment 2 Q12",
      "image_needed": true,
      "image_options": false,
      "image_page": 8,
      "image_loc": "top of page, Price Board table listing Basketball $56.75, Badminton Racket $75.95, Soccer Ball $54.65, Skipping Rope $15.35",
      "image_bbox": [0.28, 0.11, 0.72, 0.31],
      "image_file": null,
      "notes": "Key Q12 = Soccer ball. Word answer -> MCQ with the four price-board items as options. Shared price-board table for Q12-Q13."
    },
    {
      "n": 13,
      "type_id": 2,
      "question": "John bought a badminton racket. He paid with 2 pieces of $50 notes. How much money did he have left?\n$[?]",
      "answer0": "24.05",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 83,
      "difficulty_id": 2,
      "explanation": "2 x $50 = $100. Badminton racket costs $75.95. Change left = $100 - $75.95 = $24.05.",
      "hints": ["Two $50 notes make $100.", "Subtract the badminton racket's price from $100."],
      "source": "Tao Nan 2024 P3 Weighted Assessment 2 Q13",
      "image_needed": true,
      "image_options": false,
      "image_page": 8,
      "image_loc": "uses the Price Board table at the top of the page (Badminton Racket $75.95)",
      "image_bbox": [0.28, 0.11, 0.72, 0.31],
      "image_file": null,
      "notes": "Key Q13 = $24.05 (50+50=100; 100-75.95=24.05). Needs shared price-board table from page 8."
    },
    {
      "n": 14,
      "type_id": 2,
      "question": "The table shows the total walking distance of Victor and Mary on Monday and Tuesday. What is the total distance travelled by Mary for the two days? Give your answer in metres.\n[?] m",
      "answer0": "3600",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 87,
      "difficulty_id": 2,
      "explanation": "Mary walked 1 km 250 m = 1250 m on Monday and 2350 m on Tuesday. Total = 1250 + 2350 = 3600 m.",
      "hints": ["Convert 1 km 250 m to metres (1 km = 1000 m).", "Add Monday's and Tuesday's distances for Mary."],
      "source": "Tao Nan 2024 P3 Weighted Assessment 2 Q14",
      "image_needed": true,
      "image_options": false,
      "image_page": 9,
      "image_loc": "top of page, table with rows Monday/Tuesday and columns Victor/Mary (Victor: 2 km 100 m, ?; Mary: 1 km 250 m, 2350 m)",
      "image_bbox": [0.22, 0.14, 0.78, 0.24],
      "image_file": null,
      "notes": "Key Q14 = 3600 (2350 + 1250 = 3600 m). Needs shared distance table from page 9 (Q14-Q15)."
    },
    {
      "n": 15,
      "type_id": 2,
      "question": "Victor travelled a total distance of 5 km for the two days. What is the distance he travelled on Tuesday? Give your answer in metres.\n[?] m",
      "answer0": "2900",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 87,
      "difficulty_id": 2,
      "explanation": "5 km = 5000 m. Victor walked 2 km 100 m = 2100 m on Monday. Tuesday = 5000 - 2100 = 2900 m.",
      "hints": ["Convert 5 km and 2 km 100 m to metres.", "Subtract Monday's distance from the two-day total."],
      "source": "Tao Nan 2024 P3 Weighted Assessment 2 Q15",
      "image_needed": true,
      "image_options": false,
      "image_page": 9,
      "image_loc": "top of page, same Victor/Mary distance table (Victor Monday 2 km 100 m, Tuesday unknown)",
      "image_bbox": [0.22, 0.14, 0.78, 0.24],
      "image_file": null,
      "notes": "Key Q15 = 2900 (5km - 2km100m = 2km900m = 2900 m). Needs shared distance table from page 9."
    }
  ]
}