{
  "paper": {
    "school": "Tao Nan",
    "year": 2022,
    "level": "P1",
    "label": "Review 2",
    "source_prefix": "Tao Nan 2022 P1 Review 2",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 2,
      "question": "Count.\n\nThere are [?] stars.\nThere are [?] moons.",
      "answer0": "37",
      "answer1": "3",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 1,
      "difficulty_id": 1,
      "explanation": "Count each shape in the grid: there are 37 stars and 3 moons (crescents).",
      "hints": ["Count the stars one by one, then count the crescent moons separately.", "Cross off each shape as you count so you do not miss any."],
      "source": "Tao Nan 2022 P1 Review 2 Q1",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 2,
      "image_loc": "centre of page, the boxed grid of stars and crescent moons below the question",
      "notes": "Answer key: 37 stars, 3 moons. Counting question — crop must show the whole grid so both shapes can be counted."
    },
    {
      "n": 2,
      "type_id": 2,
      "question": "[?] is [?] tens and [?] ones.",
      "answer0": "69",
      "answer1": "6",
      "answer2": "9",
      "answer3": null,
      "correct_answer": null,
      "skill_id": 2,
      "difficulty_id": 1,
      "explanation": "The picture shows 6 ten-rods and 9 single cubes, which is 6 tens and 9 ones = 69.",
      "hints": ["Each long rod is one ten; each small cube is one one.", "6 tens and 9 ones make sixty-nine."],
      "source": "Tao Nan 2022 P1 Review 2 Q2",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 3,
      "image_loc": "top of page, boxed figure of base-ten rods (left) and loose cubes (right)",
      "notes": "Answer key: 69 is 6 tens and 9 ones."
    },
    {
      "n": 3,
      "type_id": 2,
      "question": "[?] is smaller than 60 but greater than 58.",
      "answer0": "59",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 4,
      "difficulty_id": 1,
      "explanation": "The number between 58 and 60 is 59.",
      "hints": ["Think of the number that comes just after 58.", "It is one less than 60."],
      "source": "Tao Nan 2022 P1 Review 2 Q3",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_loc": null,
      "notes": "Answer key: 59."
    },
    {
      "n": 4,
      "type_id": 2,
      "question": "Which bear has the greatest number?",
      "answer0": "96",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 4,
      "difficulty_id": 1,
      "explanation": "The three numbers are 69, 66 and 96. 96 is the greatest.",
      "hints": ["Compare the tens digit first.", "9 tens is more than 6 tens."],
      "source": "Tao Nan 2022 P1 Review 2 Q4",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 3,
      "image_loc": "bottom of page, boxed row of three bears holding numbers 69, 66, 96",
      "notes": "Original task is 'Circle the bear with the greatest number' — converted to FIB since the answer is a definite value (96). Numbers (69, 66, 96) are legible in the figure."
    },
    {
      "n": 5,
      "type_id": 2,
      "question": "Arrange the numbers from the smallest to the greatest.\n\n[?] (Smallest), [?], [?], [?]",
      "answer0": "45",
      "answer1": "54",
      "answer2": "59",
      "answer3": "95",
      "correct_answer": null,
      "skill_id": 5,
      "difficulty_id": 2,
      "explanation": "The numbers are 54, 95, 45, 59. From smallest to greatest: 45, 54, 59, 95.",
      "hints": ["Compare the tens digits first to find the smallest.", "45 has the smallest tens digit; 95 has the largest."],
      "source": "Tao Nan 2022 P1 Review 2 Q5",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 4,
      "image_loc": "top of page, boxed row of four sun shapes containing 54, 95, 45, 59",
      "notes": "Ordering task converted to FIB, one blank per position. Answer key: 45, 54, 59, 95. Numbers are legible in the figure."
    },
    {
      "n": 6,
      "type_id": 2,
      "question": "Complete the number pattern.\n\n69, [?], 73, 75, 77, [?], 81, 83",
      "answer0": "71",
      "answer1": "79",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 6,
      "difficulty_id": 2,
      "explanation": "The pattern increases by 2 each time: 69, 71, 73, 75, 77, 79, 81, 83.",
      "hints": ["Find how much the numbers go up by each step.", "Each number is 2 more than the one before it."],
      "source": "Tao Nan 2022 P1 Review 2 Q6",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_loc": null,
      "notes": "Answer key: 71, 79."
    },
    {
      "n": 7,
      "type_id": 2,
      "question": "6 + 9 + 7 = [?]",
      "answer0": "22",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 13,
      "difficulty_id": 2,
      "explanation": "6 + 9 = 15, then 15 + 7 = 22.",
      "hints": ["Add the first two numbers, then add the third.", "6 + 9 = 15; 15 + 7 = 22."],
      "source": "Tao Nan 2022 P1 Review 2 Q7",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_loc": null,
      "notes": "Answer key: 22."
    },
    {
      "n": 8,
      "type_id": 2,
      "question": "34 + 25 = [?] tens [?] ones",
      "answer0": "5",
      "answer1": "9",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 13,
      "difficulty_id": 2,
      "explanation": "34 + 25 = 59, which is 5 tens and 9 ones.",
      "hints": ["Add the tens and ones to get the total.", "59 is made up of 5 tens and 9 ones."],
      "source": "Tao Nan 2022 P1 Review 2 Q8",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_loc": null,
      "notes": "Answer key: 5, 9 (i.e. 34 + 25 = 59 = 5 tens 9 ones)."
    },
    {
      "n": 9,
      "type_id": 2,
      "question": "The pencil is [?] cm.",
      "answer0": "5",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 23,
      "difficulty_id": 2,
      "explanation": "The pencil starts at the 4 cm mark and ends at the 9 cm mark, so it is 9 - 4 = 5 cm long.",
      "hints": ["Look at where the pencil starts and ends on the ruler.", "Subtract the start mark from the end mark."],
      "source": "Tao Nan 2022 P1 Review 2 Q9",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 5,
      "image_loc": "top of page, boxed figure of a pencil lying along a centimetre ruler",
      "notes": "Answer key: 5cm. Printed as Q7 in the paper (numbering glitch) but is the 9th question; key confirms answer 5cm."
    },
    {
      "n": 10,
      "type_id": 2,
      "question": "Fill in the blanks with \"shorter\" or \"taller\".\n\nMonkey C is [?] than Monkey A but [?] than Monkey B.",
      "answer0": "taller",
      "answer1": "shorter",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 23,
      "difficulty_id": 2,
      "explanation": "Monkey C is taller than the shortest (Monkey A) but shorter than the tallest (Monkey B).",
      "hints": ["Compare the heights of the three monkeys.", "Monkey B is tallest, Monkey A is shortest, Monkey C is in between."],
      "source": "Tao Nan 2022 P1 Review 2 Q10",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 5,
      "image_loc": "bottom half of page, boxed figure of three monkeys labelled A, B, C of different heights",
      "notes": "Answer key: Monkey C is taller than Monkey A but shorter than Monkey B."
    },
    {
      "n": 11,
      "type_id": 2,
      "question": "String [?] is the shortest. It is about [?] cm.",
      "answer0": "C",
      "answer1": "11",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 23,
      "difficulty_id": 2,
      "explanation": "String C is the straight one and is the shortest; it measures about 11 cm.",
      "hints": ["A wavy string is longer than a straight one of the same span.", "The straight string C is the shortest."],
      "source": "Tao Nan 2022 P1 Review 2 Q11",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 6,
      "image_loc": "top of page, boxed figure of three strings labelled A (wavy), B (wavy), C (straight)",
      "notes": "Answer key: String C is the shortest. It is about 11 cm."
    },
    {
      "n": 12,
      "type_id": 2,
      "question": "strawberry + strawberry = 10\nstrawberry + apple = 20\napple = [?]",
      "answer0": "15",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 13,
      "difficulty_id": 3,
      "explanation": "strawberry + strawberry = 10 so one strawberry = 5. strawberry + apple = 20, so apple = 20 - 5 = 15.",
      "hints": ["Two strawberries make 10, so find the value of one strawberry.", "Subtract one strawberry from 20 to find the apple."],
      "source": "Tao Nan 2022 P1 Review 2 Q12",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 6,
      "image_loc": "bottom half of page, the three equation rows using strawberry and apple pictures (strawberry+strawberry=10, strawberry+apple=20, apple=?)",
      "notes": "Answer key: 15. Picture-substitution puzzle; the fruit images carry the meaning, so the figure is required."
    },
    {
      "n": 13,
      "type_id": 1,
      "question": "The picture graph shows the different animals that the students keep as pets. Each face stands for 1 student.\n\nMost students like to keep [?] as pets.",
      "answer0": "Hamster",
      "answer1": "Cat",
      "answer2": "Dog",
      "answer3": "Rabbit",
      "correct_answer": 0,
      "skill_id": 1,
      "difficulty_id": 2,
      "explanation": "Counting faces: Cat 4, Dog 7, Hamster 9, Rabbit 4. Hamster has the most, so most students keep hamsters.",
      "hints": ["Count the faces in each row.", "The row with the most faces is the most popular pet."],
      "source": "Tao Nan 2022 P1 Review 2 Q13",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 7,
      "image_loc": "upper half of page, the four-row picture graph table (Cat, Dog, Hamster, Rabbit)",
      "notes": "Multi-part in paper; part (a) only modelled here as MCQ (answer Hamster). Part (b) 'same number keep [Cat] and [Rabbit]' (both have 4) omitted as a separate FIB would need two blanks — see notes. Counts to verify: Cat 4, Dog 7, Hamster 9, Rabbit 4. Crop must show all rows."
    },
    {
      "n": 14,
      "type_id": 2,
      "question": "The picture graph shows the favourite fruits of Class 1M. Each star stands for 1 student.\n\nThere are [?] students in Class 1M.\n[?] fewer children like oranges than mangoes.",
      "answer0": "20",
      "answer1": "2",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 1,
      "difficulty_id": 2,
      "explanation": "Stars: Apple 6, Orange 4, Mango 6, Durian 2, Pear 2 — total 20 students. Oranges (4) are 2 fewer than mangoes (6).",
      "hints": ["Add up all the stars across every fruit to get the total.", "Subtract the orange count from the mango count for the second blank."],
      "source": "Tao Nan 2022 P1 Review 2 Q14",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 8,
      "image_loc": "upper half of page, the five-column star picture graph (Apple, Orange, Mango, Durian, Pear)",
      "notes": "Answer key: (a) 20, (b) 2. Two parts combined into one FIB. Counts to verify from key total: Apple 6, Orange 4, Mango 6, Durian 2, Pear 2 = 20. Crop must show all columns."
    },
    {
      "n": 15,
      "type_id": 2,
      "question": "39 + 21 = [?]",
      "answer0": "60",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 14,
      "difficulty_id": 2,
      "explanation": "39 + 21 = 60 (vertical addition with regrouping of the ones).",
      "hints": ["Add the ones first: 9 + 1 = 10, write 0 carry 1.", "Then add the tens: 3 + 2 + 1 = 6, giving 60."],
      "source": "Tao Nan 2022 P1 Review 2 Q15",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_loc": null,
      "notes": "Printed as a vertical algorithm (39 + 21) with two answer boxes; rendered as a single sum. Answer key: 60."
    },
    {
      "n": 16,
      "type_id": 2,
      "question": "9 5 - 2 [?] = [?] 5",
      "answer0": "0",
      "answer1": "7",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 14,
      "difficulty_id": 3,
      "explanation": "The full sum is 95 - 20 = 75. The missing ones digit is 0 and the answer's tens digit is 7.",
      "hints": ["The ones digits must subtract to 5: 5 - 0 = 5, so the missing ones digit is 0.", "9 tens minus 2 tens is 7 tens, giving 75."],
      "source": "Tao Nan 2022 P1 Review 2 Q16",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_loc": null,
      "notes": "Vertical subtraction with missing digits. Blanks in print order: ones digit of subtrahend (0), then tens digit of answer (7). Answer key: 95 - 20 = 75."
    },
    {
      "n": 17,
      "type_id": 2,
      "question": "David has 57 marbles. His classmate gives him 27 more marbles. How many marbles does David have now?\n\nDavid has [?] marbles now.",
      "answer0": "84",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 15,
      "difficulty_id": 2,
      "explanation": "57 + 27 = 84. David has 84 marbles now.",
      "hints": ["'Gives him more' means add.", "57 + 27 = 84."],
      "source": "Tao Nan 2022 P1 Review 2 Q17",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_loc": null,
      "notes": "Answer key: 57 + 27 = 84."
    },
    {
      "n": 18,
      "type_id": 2,
      "question": "Linda bakes 48 cupcakes. She bakes 12 cupcakes more than her mother. How many cupcakes does Linda's mother bake?\n\nLinda's mother bakes [?] cupcakes.",
      "answer0": "36",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 15,
      "difficulty_id": 3,
      "explanation": "Linda bakes 12 more than her mother, so her mother bakes 48 - 12 = 36 cupcakes.",
      "hints": ["Linda has more, so the mother baked fewer.", "48 - 12 = 36."],
      "source": "Tao Nan 2022 P1 Review 2 Q18",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_loc": null,
      "notes": "Answer key: 48 - 12 = 36."
    }
  ]
}