{
  "paper": {
    "school": "Raffles Girls",
    "year": 2024,
    "level": "P2",
    "label": "Quiz 1-2-3",
    "source_prefix": "Raffles Girls 2024 P2 Quiz 1-2-3",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "Write in words. 647",
      "answer0": "six hundred and forty-seven",
      "answer1": "six hundred and seventy-four",
      "answer2": "six hundred and forty",
      "answer3": "sixty-four hundred and seven",
      "correct_answer": 0,
      "skill_id": 30,
      "difficulty_id": 1,
      "explanation": "647 = six hundred and forty-seven.",
      "hints": ["Read the hundreds digit first.", "6 hundreds, 4 tens, 7 ones."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q1a. Word answer -> MCQ per spec (FIB type 2 cannot hold words). Key: six hundred and forty-seven."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "Write in words. 1000",
      "answer0": "one thousand",
      "answer1": "one hundred",
      "answer2": "ten thousand",
      "answer3": "one thousand and ten",
      "correct_answer": 0,
      "skill_id": 30,
      "difficulty_id": 1,
      "explanation": "1000 = one thousand.",
      "hints": ["1 followed by three zeros.", "Count the zeros."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q1b. Word answer -> MCQ. Key: one thousand."
    },
    {
      "n": 3,
      "type_id": 2,
      "question": "Write in numerals. Three hundred and eighty-five",
      "answer0": "385",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 30,
      "difficulty_id": 1,
      "explanation": "Three hundred and eighty-five = 385.",
      "hints": ["3 hundreds, 8 tens, 5 ones."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q3",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q2a. Key: 385."
    },
    {
      "n": 4,
      "type_id": 2,
      "question": "Write in numerals. Seven hundred and six",
      "answer0": "706",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 30,
      "difficulty_id": 1,
      "explanation": "Seven hundred and six = 706 (no tens).",
      "hints": ["7 hundreds, 0 tens, 6 ones.", "Put a 0 in the tens place."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q4",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q2b. Key: 706."
    },
    {
      "n": 5,
      "type_id": 2,
      "question": "Write in numerals. Nine hundred and forty",
      "answer0": "940",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 30,
      "difficulty_id": 1,
      "explanation": "Nine hundred and forty = 940.",
      "hints": ["9 hundreds, 4 tens, 0 ones."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q5",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q2c. Key: 940."
    },
    {
      "n": 6,
      "type_id": 2,
      "question": "Write the answer in numerals. 6 hundreds + 3 ones = [?]",
      "answer0": "603",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 29,
      "difficulty_id": 1,
      "explanation": "6 hundreds + 3 ones = 600 + 3 = 603 (no tens).",
      "hints": ["There are 0 tens.", "Fill the tens place with 0."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q6",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q3a. Key: 603."
    },
    {
      "n": 7,
      "type_id": 2,
      "question": "Write the answer in numerals. 8 hundreds + 1 ten + 5 ones = [?]",
      "answer0": "815",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 29,
      "difficulty_id": 1,
      "explanation": "8 hundreds + 1 ten + 5 ones = 800 + 10 + 5 = 815.",
      "hints": ["Add the place values.", "800 + 10 + 5."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q7",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q3b. Key: 815."
    },
    {
      "n": 8,
      "type_id": 2,
      "question": "Write the answer in numerals. 2 hundreds + 5 tens + 6 ones = [?]",
      "answer0": "256",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 29,
      "difficulty_id": 1,
      "explanation": "2 hundreds + 5 tens + 6 ones = 200 + 50 + 6 = 256.",
      "hints": ["Add the place values.", "200 + 50 + 6."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q8",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q3c. Key: 256."
    },
    {
      "n": 9,
      "type_id": 2,
      "question": "In 695, the digit 6 has a value of [?].",
      "answer0": "600",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 29,
      "difficulty_id": 1,
      "explanation": "In 695 the 6 is in the hundreds place, so its value is 600.",
      "hints": ["6 is in the hundreds place.", "6 hundreds = 600."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q9",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q4a. Key: 600."
    },
    {
      "n": 10,
      "type_id": 1,
      "question": "In 695, the digit 9 is in the [?] place.",
      "answer0": "tens",
      "answer1": "ones",
      "answer2": "hundreds",
      "answer3": "thousands",
      "correct_answer": 0,
      "skill_id": 29,
      "difficulty_id": 1,
      "explanation": "In 695 the 9 is the middle digit, the tens place.",
      "hints": ["Look at the middle digit.", "9 tens = 90."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q10",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q4b. Word answer -> MCQ. Key: tens."
    },
    {
      "n": 11,
      "type_id": 2,
      "question": "In 695, the digit [?] is in the ones place.",
      "answer0": "5",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 29,
      "difficulty_id": 1,
      "explanation": "The last digit of 695 is 5, which is in the ones place.",
      "hints": ["Look at the last digit.", "The ones place is rightmost."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q11",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q4c. Key: 5."
    },
    {
      "n": 12,
      "type_id": 1,
      "question": "Fill in the blank with '>' or '<'. 123 [?] 213",
      "answer0": "<",
      "answer1": ">",
      "answer2": "=",
      "answer3": "≥",
      "correct_answer": 0,
      "skill_id": 31,
      "difficulty_id": 1,
      "explanation": "123 is less than 213, so 123 < 213.",
      "hints": ["Compare the hundreds digits.", "1 hundred is less than 2 hundreds."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q12",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q5a. Symbol answer -> MCQ (4 opts). Key: <."
    },
    {
      "n": 13,
      "type_id": 1,
      "question": "Fill in the blank with '>' or '<'. 411 [?] 141",
      "answer0": ">",
      "answer1": "<",
      "answer2": "=",
      "answer3": "≤",
      "correct_answer": 0,
      "skill_id": 31,
      "difficulty_id": 1,
      "explanation": "411 is greater than 141, so 411 > 141.",
      "hints": ["Compare the hundreds digits.", "4 hundreds is more than 1 hundred."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q13",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q5b. Symbol answer -> MCQ. Key: >."
    },
    {
      "n": 14,
      "type_id": 1,
      "question": "Fill in the blank with '>' or '<'. 532 [?] 523",
      "answer0": ">",
      "answer1": "<",
      "answer2": "=",
      "answer3": "≤",
      "correct_answer": 0,
      "skill_id": 31,
      "difficulty_id": 1,
      "explanation": "Hundreds and tens are equal; 532 has more ones (2 vs 3... compare tens: 3 tens vs 2 tens), 532 > 523.",
      "hints": ["Hundreds are the same.", "Compare the tens digits: 3 vs 2."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q14",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q5c. Symbol answer -> MCQ. Key: >."
    },
    {
      "n": 15,
      "type_id": 1,
      "question": "Fill in the blank with '>' or '<'. 867 [?] 678",
      "answer0": ">",
      "answer1": "<",
      "answer2": "=",
      "answer3": "≥",
      "correct_answer": 0,
      "skill_id": 31,
      "difficulty_id": 1,
      "explanation": "867 is greater than 678, so 867 > 678.",
      "hints": ["Compare the hundreds digits.", "8 hundreds is more than 6 hundreds."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q15",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q5d. Symbol answer -> MCQ. Key: >."
    },
    {
      "n": 16,
      "type_id": 2,
      "question": "Use the digits 4, 7, 8, 0, 6 (each used at most once). The smallest 3-digit number that can be formed is [?].",
      "answer0": "406",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 31,
      "difficulty_id": 2,
      "explanation": "Smallest 3-digit number: hundreds cannot be 0, so use 4, then smallest remaining: 0 then 6 -> 406.",
      "hints": ["The hundreds digit cannot be 0.", "Put the smallest non-zero digit in front."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q16",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q6a. Digits given in box (4 7 8 0 6); rendered in stem. Key: 406."
    },
    {
      "n": 17,
      "type_id": 2,
      "question": "Use the digits 4, 7, 8, 0, 6 (each used at most once). The greatest 3-digit number that can be formed is [?].",
      "answer0": "876",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 31,
      "difficulty_id": 2,
      "explanation": "Greatest 3-digit number: use the three largest digits in descending order: 8, 7, 6 -> 876.",
      "hints": ["Put the largest digit in front.", "Use 8, 7, 6 in descending order."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q17",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q6b. Key: 876."
    },
    {
      "n": 18,
      "type_id": 2,
      "question": "Use the digits 4, 7, 8, 0, 6. Form two 3-digit numbers that are less than 500. The two numbers are [?] and [?].",
      "answer0": "478",
      "answer1": "408",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 31,
      "difficulty_id": 2,
      "explanation": "A 3-digit number less than 500 must have hundreds digit < 5, so use 4: e.g. 478 and 408.",
      "hints": ["The hundreds digit must be less than 5.", "Only 4 works as the hundreds digit."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q18",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q6c. Key (sample): 478 and 408. Other valid answers exist (any with hundreds digit 4)."
    },
    {
      "n": 19,
      "type_id": 2,
      "question": "Arrange the numbers in order. Begin with the smallest. 151, 515, 155, 551 [?], [?], [?], [?]",
      "answer0": "151",
      "answer1": "155",
      "answer2": "515",
      "answer3": "551",
      "correct_answer": null,
      "skill_id": 31,
      "difficulty_id": 2,
      "explanation": "Ascending: 151, 155, 515, 551.",
      "hints": ["Compare hundreds first, then tens, then ones.", "Smallest first."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q19",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q7. Ordering -> FIB, one blank per position. Key: 151, 155, 515, 551."
    },
    {
      "n": 20,
      "type_id": 2,
      "question": "Arrange the numbers in order. Begin with the greatest. 796, 962, 976, 269 [?], [?], [?], [?]",
      "answer0": "976",
      "answer1": "962",
      "answer2": "796",
      "answer3": "269",
      "correct_answer": null,
      "skill_id": 31,
      "difficulty_id": 2,
      "explanation": "Descending: 976, 962, 796, 269.",
      "hints": ["Compare hundreds first.", "Greatest first."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q20",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q8. Ordering -> FIB. Key: 976, 962, 796, 269."
    },
    {
      "n": 21,
      "type_id": 2,
      "question": "800 is [?] tens more than 770.",
      "answer0": "3",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 29,
      "difficulty_id": 2,
      "explanation": "800 - 770 = 30, and 30 = 3 tens.",
      "hints": ["Find the difference: 800 - 770.", "30 is 3 tens."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q21",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q9a. Key: 3."
    },
    {
      "n": 22,
      "type_id": 2,
      "question": "182 is 15 tens and [?] ones.",
      "answer0": "32",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 29,
      "difficulty_id": 2,
      "explanation": "15 tens = 150, and 182 - 150 = 32 ones.",
      "hints": ["15 tens = 150.", "182 - 150 = 32."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q22",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q9b. Key: 32."
    },
    {
      "n": 23,
      "type_id": 2,
      "question": "2 more than 84 is [?].",
      "answer0": "86",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 1,
      "explanation": "84 + 2 = 86.",
      "hints": ["Add 2 to 84."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q23",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q9c. Key: 86."
    },
    {
      "n": 24,
      "type_id": 2,
      "question": "30 less than 72 is [?].",
      "answer0": "42",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 1,
      "explanation": "72 - 30 = 42.",
      "hints": ["Subtract 30 from 72."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q24",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q9d. Key: 42."
    },
    {
      "n": 25,
      "type_id": 2,
      "question": "100 more than 520 is [?].",
      "answer0": "620",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 1,
      "explanation": "520 + 100 = 620.",
      "hints": ["Add 100 to 520.", "Only the hundreds digit changes."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q25",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q9e. Key: 620."
    },
    {
      "n": 26,
      "type_id": 2,
      "question": "Write the missing numbers. 31, 41, 51, [?], [?], 81, 91, 101",
      "answer0": "61",
      "answer1": "71",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 32,
      "difficulty_id": 1,
      "explanation": "The pattern increases by 10: 51, 61, 71, 81.",
      "hints": ["Each number is 10 more than the one before.", "Add 10 each time."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q26",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q10a. Key: 61, 71."
    },
    {
      "n": 27,
      "type_id": 2,
      "question": "Write the missing numbers. 170, 270, 370, [?], [?], 670, 770",
      "answer0": "470",
      "answer1": "570",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 32,
      "difficulty_id": 1,
      "explanation": "The pattern increases by 100: 370, 470, 570, 670.",
      "hints": ["Each number is 100 more than the one before.", "Add 100 each time."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q27",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q10b. Key: 470, 570."
    },
    {
      "n": 28,
      "type_id": 2,
      "question": "Write the missing numbers. 599, 589, 579, [?], 559, [?], 539, 529",
      "answer0": "569",
      "answer1": "549",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 32,
      "difficulty_id": 2,
      "explanation": "The pattern decreases by 10: 579, 569, 559, 549, 539.",
      "hints": ["Each number is 10 less than the one before.", "Subtract 10 each time."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q28",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q10c. Key: 569, 549."
    },
    {
      "n": 29,
      "type_id": 1,
      "question": "Is 572 even or odd?",
      "answer0": "Even",
      "answer1": "Odd",
      "answer2": null,
      "answer3": null,
      "correct_answer": 0,
      "skill_id": 33,
      "difficulty_id": 1,
      "explanation": "572 ends in 2, so it is even.",
      "hints": ["Look at the ones digit.", "Even numbers end in 0, 2, 4, 6, 8."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q29",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q11 (572). Put-a-cross table -> Even/Odd MCQ (2 options). Key: Even."
    },
    {
      "n": 30,
      "type_id": 1,
      "question": "Is 649 even or odd?",
      "answer0": "Even",
      "answer1": "Odd",
      "answer2": null,
      "answer3": null,
      "correct_answer": 1,
      "skill_id": 33,
      "difficulty_id": 1,
      "explanation": "649 ends in 9, so it is odd.",
      "hints": ["Look at the ones digit.", "Odd numbers end in 1, 3, 5, 7, 9."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q30",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q11 (649). Key: Odd."
    },
    {
      "n": 31,
      "type_id": 1,
      "question": "Is 137 even or odd?",
      "answer0": "Even",
      "answer1": "Odd",
      "answer2": null,
      "answer3": null,
      "correct_answer": 1,
      "skill_id": 33,
      "difficulty_id": 1,
      "explanation": "137 ends in 7, so it is odd.",
      "hints": ["Look at the ones digit.", "Odd numbers end in 1, 3, 5, 7, 9."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q31",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q11 (137). Key: Odd."
    },
    {
      "n": 32,
      "type_id": 1,
      "question": "Is 214 even or odd?",
      "answer0": "Even",
      "answer1": "Odd",
      "answer2": null,
      "answer3": null,
      "correct_answer": 0,
      "skill_id": 33,
      "difficulty_id": 1,
      "explanation": "214 ends in 4, so it is even.",
      "hints": ["Look at the ones digit.", "Even numbers end in 0, 2, 4, 6, 8."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q32",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q11 (214). Key: Even."
    },
    {
      "n": 33,
      "type_id": 2,
      "question": "Using the digits 8, 5 and 6, write down all the 3-digit even numbers you can form. One of them is 658. The other three are [?], [?] and [?].",
      "answer0": "568",
      "answer1": "856",
      "answer2": "586",
      "answer3": null,
      "correct_answer": null,
      "skill_id": 33,
      "difficulty_id": 3,
      "explanation": "A 3-digit even number ends in an even digit (8 or 6). Using 8,5,6 each once: ending in 8: 568, 658; ending in 6: 586, 856. Apart from 658 the others are 568, 856, 586.",
      "hints": ["An even number must end in 8 or 6.", "Try each even digit in the ones place."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q33",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q12. Digits 8,5,6 shown in boxes; 658 pre-filled. Key (full set): 658, 568, 856, 586."
    },
    {
      "n": 34,
      "type_id": 2,
      "question": "Use the digits 7, 0 and 9 to form the greatest 3-digit odd number. The greatest 3-digit odd number is [?].",
      "answer0": "907",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 33,
      "difficulty_id": 3,
      "explanation": "An odd number ends in an odd digit (7 or 9). To be greatest, hundreds = 9, so ones = 7, tens = 0: 907.",
      "hints": ["The number must end in 7 or 9 to be odd.", "Put the largest digit in the hundreds place."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q34",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q13. Digits 7,0,9 shown in boxes. Key: 907."
    },
    {
      "n": 35,
      "type_id": 2,
      "question": "Mary uses 3 of the number cards 6, 4, 8, 0 to form a 3-digit number. The digit in the hundreds place is twice the digit in the ones place. The digit in the tens place is 4 less than the digit in the ones place. The 3-digit number is [?].",
      "answer0": "804",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 29,
      "difficulty_id": 3,
      "explanation": "Let ones = o. Hundreds = 2o, tens = o - 4. Trying o = 4: hundreds = 8, tens = 0 -> 804 (uses cards 8, 0, 4).",
      "hints": ["Try each card as the ones digit.", "Hundreds is twice the ones; tens is 4 less than the ones."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q35",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 1 Q14. Cards 6,4,8,0 shown. Key: 804."
    },
    {
      "n": 36,
      "type_id": 2,
      "question": "Add. [?] + [?] = [?]",
      "answer0": "212",
      "answer1": "20",
      "answer2": "232",
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 2,
      "explanation": "Top row shows 2 hundreds, 1 ten, 2 ones = 212; bottom row 2 tens = 20. 212 + 20 = 232.",
      "hints": ["Count the hundreds, tens and ones squares.", "Add the two place-value pictures."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q36",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 7,
      "image_loc": "upper figure under '1. Add. a)', the place-value (hundreds/tens/ones) grid",
      "notes": "Worksheet 2 Q1a. Place-value block figure -> count to verify. Top: 2 hundred-flats, 1 ten-rod, 2 unit cubes = 212; bottom: 2 ten-rods = 20. No explicit key for Q1 in answer sheet (WS2 key starts at Q2-as-Q1?); solved by reading figure. DO NOT crop here."
    },
    {
      "n": 37,
      "type_id": 2,
      "question": "Add. [?] + [?] = [?]",
      "answer0": "236",
      "answer1": "133",
      "answer2": "369",
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 2,
      "explanation": "Top row: 4 hundreds, 3 tens, 6 ones = 436... read figure: top 2 hundred-flats(top-left 4), etc. Sum read from blocks. See notes; solved from figure.",
      "hints": ["Count the hundreds, tens and ones in each row.", "Add the two numbers shown."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q37",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 7,
      "image_loc": "lower figure under '1. Add. b)', the place-value grid",
      "notes": "Worksheet 2 Q1b. Place-value block figure -> MUST count from crop to verify exact addends. No explicit answer-key entry for WS2 Q1. DO NOT crop here; downstream crop + recount required."
    },
    {
      "n": 38,
      "type_id": 2,
      "question": "Add. 58 + 30 = [?]",
      "answer0": "88",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 1,
      "explanation": "58 + 30 = 88.",
      "hints": ["Add the tens: 5 tens + 3 tens.", "Ones stay the same."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q38",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q2a. Key: 88."
    },
    {
      "n": 39,
      "type_id": 2,
      "question": "Add. 93 + 8 = [?]",
      "answer0": "101",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 1,
      "explanation": "93 + 8 = 101 (regroup the ones).",
      "hints": ["3 + 8 = 11, so regroup.", "Add the carried ten."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q39",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q2b. Key: 101."
    },
    {
      "n": 40,
      "type_id": 2,
      "question": "Add. 123 + 60 = [?]",
      "answer0": "183",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 1,
      "explanation": "123 + 60 = 183.",
      "hints": ["Add the tens: 2 tens + 6 tens.", "Hundreds and ones stay the same."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q40",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q2c. Key: 183."
    },
    {
      "n": 41,
      "type_id": 2,
      "question": "Add. 116 + 55 = [?]",
      "answer0": "171",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 2,
      "explanation": "116 + 55 = 171.",
      "hints": ["Add ones: 6 + 5 = 11, regroup.", "Then add the tens."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q41",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q2d. Key: 171."
    },
    {
      "n": 42,
      "type_id": 2,
      "question": "Add. 236 + 200 = [?]",
      "answer0": "436",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 1,
      "explanation": "236 + 200 = 436.",
      "hints": ["Add the hundreds: 2 + 2.", "Tens and ones stay the same."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q42",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q2e. Key: 436."
    },
    {
      "n": 43,
      "type_id": 2,
      "question": "Add. 347 + 182 = [?]",
      "answer0": "529",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 2,
      "explanation": "347 + 182 = 529.",
      "hints": ["Add ones, then tens, then hundreds.", "Remember to regroup."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q43",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q2f. Key: 529."
    },
    {
      "n": 44,
      "type_id": 2,
      "question": "Subtract. [?] - [?] = [?]",
      "answer0": "224",
      "answer1": "32",
      "answer2": "192",
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 2,
      "explanation": "Read from the crossed-out place-value blocks: minuend, subtrahend (crossed out) and the result. Verify from crop.",
      "hints": ["Count the blocks that are NOT crossed out for the answer.", "Crossed-out blocks are taken away."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q44",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 8,
      "image_loc": "upper figure under '3. Subtract a)', place-value grid with crossed-out blocks",
      "notes": "Worksheet 2 Q3a. Crossed-out place-value subtraction figure -> count from crop to verify exact values. No explicit WS2 key for Q3. Provisional values from reading; DO NOT crop here, recount downstream."
    },
    {
      "n": 45,
      "type_id": 2,
      "question": "Subtract. [?] - [?] = [?]",
      "answer0": "433",
      "answer1": "203",
      "answer2": "230",
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 2,
      "explanation": "Read from the crossed-out place-value blocks; verify exact minuend/subtrahend/result from the crop.",
      "hints": ["Count the blocks not crossed out.", "Crossed-out blocks are subtracted."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q45",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 8,
      "image_loc": "lower figure under '3. Subtract b)', place-value grid with crossed-out blocks",
      "notes": "Worksheet 2 Q3b. Crossed-out place-value subtraction figure -> count from crop to verify. No explicit WS2 key for Q3. Provisional; DO NOT crop here, recount downstream."
    },
    {
      "n": 46,
      "type_id": 2,
      "question": "Subtract. 82 - 30 = [?]",
      "answer0": "52",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 1,
      "explanation": "82 - 30 = 52.",
      "hints": ["Subtract the tens: 8 tens - 3 tens.", "Ones stay the same."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q46",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q4a. Key: 52."
    },
    {
      "n": 47,
      "type_id": 2,
      "question": "Subtract. 92 - 44 = [?]",
      "answer0": "48",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 2,
      "explanation": "92 - 44 = 48 (regroup).",
      "hints": ["You need to regroup a ten.", "12 - 4 = 8 in the ones."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q47",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q4b. Key: 48."
    },
    {
      "n": 48,
      "type_id": 2,
      "question": "Subtract. 467 - 14 = [?]",
      "answer0": "453",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 1,
      "explanation": "467 - 14 = 453.",
      "hints": ["Subtract ones, then tens.", "Hundreds stay the same."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q48",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q4c. Key: 453."
    },
    {
      "n": 49,
      "type_id": 2,
      "question": "Subtract. 694 - 105 = [?]",
      "answer0": "589",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 2,
      "explanation": "694 - 105 = 589 (regroup).",
      "hints": ["Regroup a ten to subtract the ones.", "14 - 5 = 9 in the ones."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q49",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q4d. Key: 589."
    },
    {
      "n": 50,
      "type_id": 2,
      "question": "Subtract. 986 - 215 = [?]",
      "answer0": "771",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 2,
      "explanation": "986 - 215 = 771.",
      "hints": ["Subtract ones, tens, then hundreds.", "No regrouping needed."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q50",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q4e. Key: 771."
    },
    {
      "n": 51,
      "type_id": 2,
      "question": "Subtract. 749 - 373 = [?]",
      "answer0": "376",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 2,
      "explanation": "749 - 373 = 376 (regroup the tens).",
      "hints": ["Regroup a hundred to subtract the tens.", "14 tens - 7 tens after regrouping."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q51",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q4f. Key: 376."
    },
    {
      "n": 52,
      "type_id": 2,
      "question": "Add. 236 + 20 = [?]",
      "answer0": "256",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 1,
      "explanation": "236 + 20 = 256.",
      "hints": ["Add the tens: 3 tens + 2 tens.", "Hundreds and ones stay the same."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q52",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q5a (place-value column table: 236 + 20). Key (WS2 Q5a): 256."
    },
    {
      "n": 53,
      "type_id": 2,
      "question": "Add. 153 + 172 = [?]",
      "answer0": "225",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 2,
      "explanation": "Hundreds/Tens/Ones column: top 1 5 3 = 153, add 1 7 2 = 172. 153 + 172 = 325. NOTE key says 225 (see notes).",
      "hints": ["Add hundreds, tens and ones in columns.", "Regroup the tens if needed."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q53",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q5b (table: H1 T5 O3 + H1 T7 O2). 153+172=325, but answer key WS2 Q5b states 225. Using key value 225 per spec (key authoritative); discrepancy flagged - downstream review recommended."
    },
    {
      "n": 54,
      "type_id": 2,
      "question": "Add. 152 + 423 = [?]",
      "answer0": "575",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 2,
      "explanation": "152 + 423 = 575.",
      "hints": ["Add hundreds, tens and ones.", "No regrouping needed."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q54",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q5c (table: H1 T5 O2 + H4 T2 O3). Key: 575."
    },
    {
      "n": 55,
      "type_id": 2,
      "question": "Add. 289 + 60 = [?]",
      "answer0": "349",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 2,
      "explanation": "289 + 60 = 349 (regroup the tens).",
      "hints": ["Add the tens: 8 tens + 6 tens, regroup.", "Carry a hundred."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q55",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q5d (table: H2 T8 O9 + T6). Key: 349."
    },
    {
      "n": 56,
      "type_id": 2,
      "question": "Subtract. 188 - 42 = [?]",
      "answer0": "146",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 1,
      "explanation": "188 - 42 = 146.",
      "hints": ["Subtract ones, then tens.", "Hundreds stay the same."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q56",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q6a (table: H1 T8 O8 - T4 O2). Key: 146."
    },
    {
      "n": 57,
      "type_id": 2,
      "question": "Subtract. 94 - 17 = [?]",
      "answer0": "77",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 2,
      "explanation": "94 - 17 = 77 (regroup).",
      "hints": ["Regroup a ten to subtract the ones.", "14 - 7 = 7."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q57",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q6b (table: T9 O4 - T1 O7). Key: 77."
    },
    {
      "n": 58,
      "type_id": 2,
      "question": "Subtract. 709 - 501 = [?]",
      "answer0": "208",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 2,
      "explanation": "709 - 501 = 208.",
      "hints": ["Subtract ones, tens, hundreds.", "0 tens - 0 tens = 0."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q58",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q6c (table: H7 T0 O9 - H5 T0 O1). Key: 208."
    },
    {
      "n": 59,
      "type_id": 2,
      "question": "Subtract. 950 - 647 = [?]",
      "answer0": "303",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 3,
      "explanation": "950 - 647 = 303 (regroup).",
      "hints": ["Regroup to subtract the ones and tens.", "10 - 7 = 3 in the ones."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q59",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q6d (table: H9 T5 O0 - H6 T4 O7). Key: 303."
    },
    {
      "n": 60,
      "type_id": 2,
      "question": "Complete the following. 700 - 248 = [?]",
      "answer0": "452",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 3,
      "explanation": "700 - 248 = 452 (regroup across zeros).",
      "hints": ["Regroup from the hundreds.", "Subtract ones, tens, hundreds carefully."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q60",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q8a (table: H7 T0 O0 - H2 T4 O8). Key WS2 Q8 a)452."
    },
    {
      "n": 61,
      "type_id": 2,
      "question": "Complete the following. 439 + 461 = [?]",
      "answer0": "900",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 2,
      "explanation": "439 + 461 = 900.",
      "hints": ["Add ones, tens, hundreds.", "Regroup as you go."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q61",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q8b (table: H4 T3 O9 + H4 T6 O1). Key WS2 Q8 b)900."
    },
    {
      "n": 62,
      "type_id": 2,
      "question": "Complete the following. 5 [?] [?] + 3 2 9 = 8 7 0",
      "answer0": "4",
      "answer1": "1",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 3,
      "explanation": "870 - 329 = 541, so the top number is 541: the missing tens digit is 4 and ones digit is 1.",
      "hints": ["Subtract 329 from 870 to find the missing number.", "The missing digits are the tens and ones of 541."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q62",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q8c (table H5 T? O? + H3 T2 O9 = H8 T7 O0; tens & ones boxed/blank). Key WS2 Q8 c)41 (tens=4, ones=1). Two blanks in order: tens then ones."
    },
    {
      "n": 63,
      "type_id": 2,
      "question": "Complete the following. 7 0 6 - 2 [?] 6 = 4 2 0",
      "answer0": "8",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 3,
      "explanation": "706 - 420 = 286, so the subtrahend is 286: the missing tens digit is 8.",
      "hints": ["706 - 420 = 286.", "The missing digit is the tens of 286."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q63",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q8d (table H7 T0 O6 - H2 T? O6 = H4 T2 O0; tens boxed/blank). Key WS2 Q8 d)8."
    },
    {
      "n": 64,
      "type_id": 2,
      "question": "Write the numbers 3, 4, 5 and 6 in the correct places so that each line of the cross adds up to 11. The horizontal line is 4, 1, 6. The vertical line top-to-bottom is 5, 1, 3, 2. The numbers from top to bottom then left to right of the cross arms are [?], [?], [?], [?].",
      "answer0": "5",
      "answer1": "4",
      "answer2": "6",
      "answer3": "3",
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 3,
      "explanation": "The cross has centre 1 with given 2 at the bottom. Horizontal: 4 + 1 + 6 = 11. Vertical: 5 + 1 + 3 + 2 = 11. So top=5, left=4, right=6, the cell above 2 = 3.",
      "hints": ["Each straight line through the cross must total 11.", "Use the centre 1 and bottom 2 to work out the rest."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q64",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 12,
      "image_loc": "cross/plus diagram below question 9, with 1 in the centre and 2 at the bottom",
      "notes": "Worksheet 2 Q9. Cross-puzzle figure. Key (WS2 Q9 diagram): top=5, left=4, centre=1(given), right=6, then 3, bottom=2(given). Answers ordered top,left,right,'cell above 2'=3. Figure helpful; DO NOT crop here."
    },
    {
      "n": 65,
      "type_id": 2,
      "question": "Using each of the digits 0, 1, 2, 3, 4 and 5 only once, form two 3-digit numbers that will give the greatest answer when you add them. The two 3-digit numbers are [?] and [?].",
      "answer0": "531",
      "answer1": "420",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 34,
      "difficulty_id": 3,
      "explanation": "Put the two largest digits (5, 4) in the hundreds places, the next two (3, 2) in the tens, and (1, 0) in the ones: 531 + 420 = 951 (greatest sum).",
      "hints": ["Largest digits go in the hundreds places.", "Then fill the tens, then the ones."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q65",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 2 Q10. Digit cards 0-5 shown. Key: 531 and 420."
    },
    {
      "n": 66,
      "type_id": 1,
      "question": "A bag is [?] than 1 m tall.",
      "answer0": "less",
      "answer1": "more",
      "answer2": "equal",
      "answer3": "the same",
      "correct_answer": 0,
      "skill_id": 53,
      "difficulty_id": 1,
      "explanation": "A school bag is shorter than 1 m, so it is less than 1 m tall.",
      "hints": ["Picture how tall 1 m is.", "Is a bag taller or shorter than 1 m?"],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q66",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 15,
      "image_loc": "backpack picture beside part (a) with a vertical height arrow",
      "notes": "Worksheet 3 Q1a. 'more'/'less' word answer -> MCQ. Key: less. Bag image with height arrow; DO NOT crop here."
    },
    {
      "n": 67,
      "type_id": 1,
      "question": "A sofa is [?] than 1 m long.",
      "answer0": "more",
      "answer1": "less",
      "answer2": "equal",
      "answer3": "the same",
      "correct_answer": 0,
      "skill_id": 53,
      "difficulty_id": 1,
      "explanation": "A sofa is longer than 1 m, so it is more than 1 m long.",
      "hints": ["Picture how long 1 m is.", "Is a sofa longer or shorter than 1 m?"],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q67",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 15,
      "image_loc": "sofa picture beside part (b) with a horizontal length arrow",
      "notes": "Worksheet 3 Q1b. Word answer -> MCQ. Key: more. Sofa image with length arrow; DO NOT crop here."
    },
    {
      "n": 68,
      "type_id": 1,
      "question": "A ladle is [?] than 1 m long.",
      "answer0": "less",
      "answer1": "more",
      "answer2": "equal",
      "answer3": "the same",
      "correct_answer": 0,
      "skill_id": 53,
      "difficulty_id": 1,
      "explanation": "A ladle is shorter than 1 m, so it is less than 1 m long.",
      "hints": ["Picture how long 1 m is.", "A ladle is a small kitchen tool."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q68",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 15,
      "image_loc": "ladle picture beside part (c) with a horizontal length arrow",
      "notes": "Worksheet 3 Q1c. Word answer -> MCQ. Key: less. Ladle image with length arrow; DO NOT crop here."
    },
    {
      "n": 69,
      "type_id": 2,
      "question": "Using the measuring scale, the length of the car is [?] m.",
      "answer0": "3",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 50,
      "difficulty_id": 2,
      "explanation": "Reading the scale, the car spans about 3 m.",
      "hints": ["Read the start and end marks on the scale.", "Count the metre gridlines the car covers."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q69",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 16,
      "image_loc": "vehicle measuring-scale diagram (car, ambulance, bicycle, fire engine over a 0-12 m grid)",
      "notes": "Worksheet 3 Q2a. Key: 3 m. Needs full scale figure; DO NOT crop here."
    },
    {
      "n": 70,
      "type_id": 2,
      "question": "Using the measuring scale, the length of the bicycle is [?] m.",
      "answer0": "2",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 50,
      "difficulty_id": 2,
      "explanation": "Reading the scale, the bicycle spans about 2 m.",
      "hints": ["Read the gridline marks under the bicycle.", "Count the metre squares it covers."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q70",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 16,
      "image_loc": "vehicle measuring-scale diagram over a 0-12 m grid",
      "notes": "Worksheet 3 Q2b. Key: 2 m. Needs full scale figure; DO NOT crop here."
    },
    {
      "n": 71,
      "type_id": 2,
      "question": "Using the measuring scale, the length of the fire engine is [?] m.",
      "answer0": "9",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 50,
      "difficulty_id": 2,
      "explanation": "Reading the scale, the fire engine spans about 9 m.",
      "hints": ["Read where the fire engine starts and ends on the scale.", "Count the metre gridlines."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q71",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 16,
      "image_loc": "vehicle measuring-scale diagram over a 0-12 m grid",
      "notes": "Worksheet 3 Q2c. Key: 9 m. Needs full scale figure; DO NOT crop here."
    },
    {
      "n": 72,
      "type_id": 2,
      "question": "Using the measuring scale, the length of the ambulance is [?] m.",
      "answer0": "4",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 50,
      "difficulty_id": 2,
      "explanation": "Reading the scale, the ambulance spans about 4 m.",
      "hints": ["Read where the ambulance starts and ends.", "Count the metre gridlines."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q72",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 16,
      "image_loc": "vehicle measuring-scale diagram over a 0-12 m grid",
      "notes": "Worksheet 3 Q2d. Key: 4 m. Needs full scale figure; DO NOT crop here."
    },
    {
      "n": 73,
      "type_id": 2,
      "question": "Arrange the vehicles in order of length. Begin with the longest. (car 3 m, bicycle 2 m, fire engine 9 m, ambulance 4 m) [?], [?], [?], [?]",
      "answer0": "fire engine",
      "answer1": "ambulance",
      "answer2": "car",
      "answer3": "bicycle",
      "correct_answer": null,
      "skill_id": 53,
      "difficulty_id": 2,
      "explanation": "Lengths: fire engine 9 m, ambulance 4 m, car 3 m, bicycle 2 m. Longest first: fire engine, ambulance, car, bicycle.",
      "hints": ["Use the lengths you read from the scale.", "Longest first."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q73",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 16,
      "image_loc": "vehicle measuring-scale diagram over a 0-12 m grid",
      "notes": "Worksheet 3 Q2e. Ordering of word labels -> FIB (names from the figure). Key: fire engine, ambulance, car, bicycle. Needs figure; DO NOT crop here."
    },
    {
      "n": 74,
      "type_id": 2,
      "question": "Building A is 452 m tall, Building B is 324 m tall and Building C is 508 m tall. Building B is [?] m shorter than Building C.",
      "answer0": "184",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 54,
      "difficulty_id": 2,
      "explanation": "508 - 324 = 184 m.",
      "hints": ["Subtract Building B's height from Building C's.", "508 - 324."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q74",
      "image_needed": true,
      "image_options": false,
      "image_file": null,
      "image_page": 17,
      "image_loc": "three labelled building pictures (A 452 m, B 324 m, C 508 m)",
      "notes": "Worksheet 3 Q3a. Heights given in text; image is decorative. Key: 184. image_needed true (figure with heights) but values also in stem; DO NOT crop here."
    },
    {
      "n": 75,
      "type_id": 2,
      "question": "Building A is 452 m tall, Building B is 324 m tall and Building C is 508 m tall. Building C is [?] m taller than Building A.",
      "answer0": "56",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 54,
      "difficulty_id": 2,
      "explanation": "508 - 452 = 56 m.",
      "hints": ["Subtract Building A's height from Building C's.", "508 - 452."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q75",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 3 Q3b. Heights in stem. Key: 56."
    },
    {
      "n": 76,
      "type_id": 2,
      "question": "Building A is 452 m tall, Building B is 324 m tall and Building C is 508 m tall. Building A is [?] m taller than Building B.",
      "answer0": "128",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 54,
      "difficulty_id": 2,
      "explanation": "452 - 324 = 128 m.",
      "hints": ["Subtract Building B's height from Building A's.", "452 - 324."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q76",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 3 Q3c. Heights in stem. Key: 128."
    },
    {
      "n": 77,
      "type_id": 2,
      "question": "Building A is 452 m tall, Building B is 324 m tall and Building C is 508 m tall. Arrange the buildings in order of height. Begin with the shortest. [?], [?], [?]",
      "answer0": "Building B",
      "answer1": "Building A",
      "answer2": "Building C",
      "answer3": null,
      "correct_answer": null,
      "skill_id": 53,
      "difficulty_id": 2,
      "explanation": "Heights: B 324 m, A 452 m, C 508 m. Shortest first: Building B, Building A, Building C.",
      "hints": ["Compare the three heights.", "Shortest first."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q77",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 3 Q3d. Ordering of building labels -> FIB. Key: Building B, Building A, Building C."
    },
    {
      "n": 78,
      "type_id": 2,
      "question": "Sally has a 350 cm long string. She uses 192 cm of the string. The length of the string left is [?] cm.",
      "answer0": "158",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 54,
      "difficulty_id": 2,
      "explanation": "350 - 192 = 158 cm.",
      "hints": ["Subtract the length used from the total.", "350 - 192."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q78",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 3 Q4(1). Answer stated in cm. Key: 158 cm. Stem asks length-of-string-left as the blank value."
    },
    {
      "n": 79,
      "type_id": 2,
      "question": "Pamela ran 235 m from her house to the garden. Then she ran another 487 m from the garden to the library. She ran [?] m altogether.",
      "answer0": "722",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 54,
      "difficulty_id": 2,
      "explanation": "235 + 487 = 722 m.",
      "hints": ["Add the two distances.", "235 + 487."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q79",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 3 Q4(2). Key: 722 m."
    },
    {
      "n": 80,
      "type_id": 2,
      "question": "Peter is 162 cm tall. His brother is 25 cm shorter than him. The height of Peter's brother is [?] cm.",
      "answer0": "137",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 54,
      "difficulty_id": 2,
      "explanation": "162 - 25 = 137 cm.",
      "hints": ["Subtract 25 from Peter's height.", "162 - 25."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q80",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 3 Q4(3). Key: 137 cm."
    },
    {
      "n": 81,
      "type_id": 2,
      "question": "Building A is 485 m tall. Building B is 268 m tall. Building A is [?] m taller than Building B.",
      "answer0": "217",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 54,
      "difficulty_id": 2,
      "explanation": "485 - 268 = 217 m.",
      "hints": ["Subtract Building B's height from Building A's.", "485 - 268."],
      "source": "Raffles Girls 2024 P2 Quiz 1-2-3 Q81",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Worksheet 3 Q4(4). Key: 217 m."
    }
  ]
}