{
  "paper": {
    "school": "Maha Bodhi",
    "year": 2023,
    "level": "P2",
    "label": "Topical Review 2",
    "source_prefix": "Maha Bodhi 2023 P2 Topical Review 2",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "What is the time shown on the clock?",
      "answer0": "3:45",
      "answer1": "4:46",
      "answer2": "9:19",
      "answer3": "9:30",
      "correct_answer": 2,
      "skill_id": 55,
      "difficulty_id": 2,
      "explanation": "The hour hand is just past 9 and the minute hand points near 4, which is 19 minutes. The time is 9:19.",
      "hints": ["Read the short hour hand first.", "Each number on the clock face is 5 minutes; the minute hand is near 4."],
      "source": "Maha Bodhi 2023 P2 Topical Review 2 Q1",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 1,
      "image_loc": "right of the question, upper area of page 1",
      "notes": "Key: option 3 (1-based) = 9:19, 0-based index 2."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "What is 3 h 40 min in minutes?",
      "answer0": "184 min",
      "answer1": "220 min",
      "answer2": "340 min",
      "answer3": "403 min",
      "correct_answer": 1,
      "skill_id": 57,
      "difficulty_id": 2,
      "explanation": "3 h = 180 min, plus 40 min = 220 min.",
      "hints": ["1 hour = 60 minutes.", "3 x 60 = 180, then add 40."],
      "source": "Maha Bodhi 2023 P2 Topical Review 2 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 2 (1-based) = 220 min, 0-based index 1."
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "Which of the following is the same as what is shown in the picture?",
      "answer0": "4 groups of 5",
      "answer1": "5 groups of 4",
      "answer2": "4 + 4 + 4 + 4",
      "answer3": "5 + 5 + 5 + 5 + 5",
      "correct_answer": 0,
      "skill_id": 36,
      "difficulty_id": 2,
      "explanation": "There are 4 boxes, each with 5 apples, so it is 4 groups of 5.",
      "hints": ["Count the number of boxes.", "Count how many apples are in each box."],
      "source": "Maha Bodhi 2023 P2 Topical Review 2 Q3",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 2,
      "image_loc": "top of page 2, a 2x2 grid of boxes each holding 5 apples",
      "notes": "Key: option 1 (1-based) = 4 groups of 5, 0-based index 0. Image: 4 boxes of 5 apples."
    },
    {
      "n": 4,
      "type_id": 1,
      "question": "What is the total amount of money shown here?",
      "answer0": "$15.60",
      "answer1": "$15.00",
      "answer2": "$14.60",
      "answer3": "$12.00",
      "correct_answer": 2,
      "skill_id": 45,
      "difficulty_id": 2,
      "explanation": "$10 + $2 + $1 + 50c + 50c + 20c + 10c + 10c + 20c = $13 + $1.60 = $14.60.",
      "hints": ["Add the notes first: $10 + $2.", "Then add the coins: $1 + 50c + 50c + 20c + 20c + 10c + 10c."],
      "source": "Maha Bodhi 2023 P2 Topical Review 2 Q4",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 3,
      "image_loc": "upper area of page 3, a framed box of notes ($10, $2) and coins ($1, 50c, 50c, 20c, 10c, 10c, 20c)",
      "notes": "Key: option 3 (1-based) = $14.60, 0-based index 2."
    },
    {
      "n": 5,
      "type_id": 1,
      "question": "On Monday, Farah stayed at the student care centre from 1:40 pm to 5:55 pm. She spent [?] at the student care centre.",
      "answer0": "4 h 20 min",
      "answer1": "4 h 15 min",
      "answer2": "5 h 15 min",
      "answer3": "9 h 20 min",
      "correct_answer": 1,
      "skill_id": 58,
      "difficulty_id": 2,
      "explanation": "From 1:40 pm to 5:40 pm is 4 h; from 5:40 pm to 5:55 pm is 15 min. Total 4 h 15 min.",
      "hints": ["Count the whole hours from 1:40 to 5:40.", "Then count the extra minutes to 5:55."],
      "source": "Maha Bodhi 2023 P2 Topical Review 2 Q5",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 4,
      "image_loc": "middle of page 4, two clock faces (1:40 and 5:55) joined by an arrow",
      "notes": "MCQ with the blank in the stem. Key: option 2 (1-based) = 4 h 15 min, 0-based index 1. Image is decorative (clocks restate the times); times also given in text."
    },
    {
      "n": 6,
      "type_id": 2,
      "question": "Jane started building a sandcastle at 12.32 am. She finished building it at 2.47 pm. How long did she spend building the sandcastle? Give your answer in hour and minutes. [?] h [?] min",
      "answer0": "2",
      "answer1": "15",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 58,
      "difficulty_id": 2,
      "explanation": "From 12.32 pm to 2.32 pm is 2 h; from 2.32 pm to 2.47 pm is 15 min. Total 2 h 15 min. (Timeline uses 12:32 pm, 2:32 pm, 2:47 pm.)",
      "hints": ["Use the timeline: 12:32 pm to 2:32 pm, then to 2:47 pm.", "Add the whole hours and the extra minutes."],
      "source": "Maha Bodhi 2023 P2 Topical Review 2 Q6",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 5,
      "image_loc": "middle of page 5, a number-line timeline marked 12:32 pm, 2:32 pm, 2:47 pm with two ? boxes",
      "notes": "Key: 2 h 15 min. Stem reads 'am' for start but the timeline reads 12:32 pm; transcribed verbatim as printed (12.32 am). Two-blank FIB; answer0=2 (hours), answer1=15 (minutes)."
    },
    {
      "n": 7,
      "type_id": 2,
      "question": "There are 12 cupcakes. Mrs Lim puts the cupcakes equally into 4 boxes. How many cupcakes are there in each box? [?]",
      "answer0": "3",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 40,
      "difficulty_id": 1,
      "explanation": "12 cupcakes shared equally into 4 boxes: 12 / 4 = 3 cupcakes per box.",
      "hints": ["Share 12 equally among 4 groups.", "12 / 4 = ?"],
      "source": "Maha Bodhi 2023 P2 Topical Review 2 Q7",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 5,
      "image_loc": "lower half of page 5, 12 cupcakes in two rows of 6",
      "notes": "Key: 3 cupcakes. Image (12 cupcakes) optional but helpful."
    },
    {
      "n": 8,
      "type_id": 2,
      "question": "Write $3.05 in cents. [?]",
      "answer0": "305",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 48,
      "difficulty_id": 1,
      "explanation": "$3.05 = $3 + 5c = 300c + 5c = 305c.",
      "hints": ["$1 = 100 cents.", "$3 = 300 cents, then add 5 cents."],
      "source": "Maha Bodhi 2023 P2 Topical Review 2 Q8",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 305 (cents). Answer unit is cents; blank holds the numeric value 305."
    },
    {
      "n": 9,
      "type_id": 2,
      "question": "There were 453 boys and 186 girls who went to the zoo. How many children went to the zoo altogether? [?]",
      "answer0": "639",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 35,
      "difficulty_id": 1,
      "explanation": "453 + 186 = 639 children.",
      "hints": ["Altogether means add.", "453 + 186 = ?"],
      "source": "Maha Bodhi 2023 P2 Topical Review 2 Q9",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 639 children."
    },
    {
      "n": 10,
      "type_id": 2,
      "question": "Joe had 217 marbles. Sam had 96 fewer marbles than Joe. How many marbles did Sam have? [?]",
      "answer0": "121",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 35,
      "difficulty_id": 2,
      "explanation": "217 - 96 = 121 marbles.",
      "hints": ["Fewer means subtract.", "217 - 96 = ?"],
      "source": "Maha Bodhi 2023 P2 Topical Review 2 Q10",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 121 marbles."
    },
    {
      "n": 11,
      "type_id": 2,
      "question": "Carol pasted 27 stickers on 3 pieces of paper. She pasted the same number of stickers on each piece of paper. How many stickers were there on each piece of paper? [?]",
      "answer0": "9",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 40,
      "difficulty_id": 1,
      "explanation": "27 stickers shared equally on 3 pieces: 27 / 3 = 9 stickers each.",
      "hints": ["Share 27 equally among 3.", "27 / 3 = ?"],
      "source": "Maha Bodhi 2023 P2 Topical Review 2 Q11",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 9 stickers."
    },
    {
      "n": 12,
      "type_id": 2,
      "question": "Mary spent $15 to buy some markers. 4 markers are sold in a box for $3. How many markers did she buy? [?]",
      "answer0": "20",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 40,
      "difficulty_id": 2,
      "explanation": "$15 / $3 = 5 boxes; 5 boxes x 4 markers = 20 markers.",
      "hints": ["How many $3 boxes fit in $15?", "Multiply the number of boxes by 4 markers each."],
      "source": "Maha Bodhi 2023 P2 Topical Review 2 Q12",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 8,
      "image_loc": "right of the question on page 8, a box of 4 markers labelled '4 markers for $3'",
      "notes": "Key: 20 markers. Image (box of 4 markers, '4 markers for $3') restates the price; optional. 2-step problem."
    },
    {
      "n": 13,
      "type_id": 2,
      "question": "Tom had 500 cards. He had 128 more cards than Jerry. (a) How many cards did Jerry have? Jerry had [?] cards. (b) How many cards did they have altogether? They had [?] cards altogether.",
      "answer0": "372",
      "answer1": "872",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 35,
      "difficulty_id": 2,
      "explanation": "(a) Jerry: 500 - 128 = 372 cards. (b) Altogether: 372 + 500 = 872 cards.",
      "hints": ["Tom has more, so subtract 128 from 500 to find Jerry.", "Add Tom's and Jerry's cards for the total."],
      "source": "Maha Bodhi 2023 P2 Topical Review 2 Q13",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: (a) 372 cards, (b) 872 cards. Two-part long answer; answer0=part(a), answer1=part(b)."
    },
    {
      "n": 14,
      "type_id": 2,
      "question": "Serena bought a cap and a pair of jogging shoes. She had $137 left. The cap cost $28 and the jogging shoes cost $95. (a) How much did she spend in all? She spent [?] in all. (b) How much money did she have at first? She had [?] at first.",
      "answer0": "$123",
      "answer1": "$260",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 49,
      "difficulty_id": 2,
      "explanation": "(a) Spent: $28 + $95 = $123. (b) At first: $123 + $137 = $260.",
      "hints": ["Add the price of the cap and the shoes for what she spent.", "Add what she spent to what she had left."],
      "source": "Maha Bodhi 2023 P2 Topical Review 2 Q14",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 10,
      "image_loc": "under part (a) on page 10, a cap tagged $28 and jogging shoes tagged $95",
      "notes": "Key: (a) $123, (b) $260. Prices ($28 cap, $95 shoes) appear only on the image tags, so they are added into the stem text to make the problem solvable. Two-part money word problem."
    }
  ]
}