[
  {
    "index": 750,
    "qid": 7714,
    "type_id": 2,
    "question_summary": "Fill in the blank: 3 + [?] = 13",
    "answer_key": ["10"],
    "verified_answer": "10",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Answer 10 is correct (3+10=13). Solution is missing."
  },
  {
    "index": 751,
    "qid": 7731,
    "type_id": 1,
    "question_summary": "What is 8 + 9 + 9?",
    "answer_key": ["26"],
    "verified_answer": "26",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Answer 26 is correct (8+9+9=26). Solution is missing."
  },
  {
    "index": 752,
    "qid": 8567,
    "type_id": 1,
    "question_summary": "Write the number in words: 72604",
    "answer_key": ["Seventy-two thousand, six hundred and four"],
    "verified_answer": "Seventy-two thousand, six hundred and four",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct index 3. 72604 = seventy-two thousand, six hundred and four. Solution is missing."
  },
  {
    "index": 753,
    "qid": 8569,
    "type_id": 1,
    "question_summary": "Write the number in words: 54392",
    "answer_key": ["Fifty-four thousand, three hundred and ninety-two"],
    "verified_answer": "Fifty-four thousand, three hundred and ninety-two",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct index 3. 54392 = fifty-four thousand, three hundred and ninety-two. Solution is missing."
  },
  {
    "index": 754,
    "qid": 8571,
    "type_id": 1,
    "question_summary": "Write the number in words: 45812",
    "answer_key": ["Forty-five thousand, eight hundred and twelve"],
    "verified_answer": "Forty-five thousand, eight hundred and twelve",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct index 3. 45812 = forty-five thousand, eight hundred and twelve. Solution is missing."
  },
  {
    "index": 755,
    "qid": 8573,
    "type_id": 1,
    "question_summary": "Write the number in words: 52964",
    "answer_key": ["Fifty-two thousand, nine hundred and sixty-four"],
    "verified_answer": "Fifty-two thousand, nine hundred and sixty-four",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct index 3. 52964 = fifty-two thousand, nine hundred and sixty-four. Solution is missing."
  },
  {
    "index": 756,
    "qid": 8574,
    "type_id": 1,
    "question_summary": "Write the number in words: 81473",
    "answer_key": ["Eighty-one thousand, four hundred and seventy-three"],
    "verified_answer": "Eighty-one thousand, four hundred and seventy-three",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct index 3. 81473 = eighty-one thousand, four hundred and seventy-three. Solution is missing."
  },
  {
    "index": 757,
    "qid": 8575,
    "type_id": 1,
    "question_summary": "Write the number in words: 39650",
    "answer_key": ["Thirty-nine thousand, six hundred and fifty"],
    "verified_answer": "Thirty-nine thousand, six hundred and fifty",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct index 3. 39650 = thirty-nine thousand, six hundred and fifty. Solution is missing."
  },
  {
    "index": 758,
    "qid": 8577,
    "type_id": 1,
    "question_summary": "Write the number in words: 73405",
    "answer_key": ["Seventy-three thousand, four hundred and five"],
    "verified_answer": "Seventy-three thousand, four hundred and five",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct index 1. 73405 = seventy-three thousand, four hundred and five. Solution is missing."
  },
  {
    "index": 759,
    "qid": 8578,
    "type_id": 1,
    "question_summary": "Write the number in words: 82196",
    "answer_key": ["Eighty-two thousand, one hundred and ninety-six"],
    "verified_answer": "Eighty-two thousand, one hundred and ninety-six",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct index 1. 82196 = eighty-two thousand, one hundred and ninety-six. Solution is missing."
  },
  {
    "index": 760,
    "qid": 8579,
    "type_id": 1,
    "question_summary": "Write the number in words: 65803",
    "answer_key": ["Sixty-five thousand, eight hundred and three"],
    "verified_answer": "Sixty-five thousand, eight hundred and three",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct index 1. 65803 = sixty-five thousand, eight hundred and three. Solution is missing."
  },
  {
    "index": 761,
    "qid": 8580,
    "type_id": 1,
    "question_summary": "Write the number in words: 91452",
    "answer_key": ["Ninety-one thousand, four hundred and fifty-two"],
    "verified_answer": "Ninety-one thousand, four hundred and fifty-two",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct index 1. 91452 = ninety-one thousand, four hundred and fifty-two. Solution is missing."
  },
  {
    "index": 762,
    "qid": 8631,
    "type_id": 2,
    "question_summary": "Eighty-nine thousand, five hundred and sixty-four in numerals",
    "answer_key": ["89564"],
    "verified_answer": "89564",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Answer 89564 is correct. Solution is missing."
  },
  {
    "index": 763,
    "qid": 8659,
    "type_id": 2,
    "question_summary": "Arrange numbers smallest first: 42635, 46235, 42365, 46532",
    "answer_key": ["42365", "42635", "46235", "46532"],
    "verified_answer": "42365 (smallest, then 42635, 46235, 46532)",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct ordering: 42365 < 42635 < 46235 < 46532. Solution is missing."
  },
  {
    "index": 764,
    "qid": 8660,
    "type_id": 2,
    "question_summary": "Arrange numbers smallest first: 57418, 54718, 57841, 54178",
    "answer_key": ["54178", "54718", "57418", "57841"],
    "verified_answer": "54178 (smallest, then 54718, 57418, 57841)",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct ordering: 54178 < 54718 < 57418 < 57841. Solution is missing."
  },
  {
    "index": 765,
    "qid": 8661,
    "type_id": 2,
    "question_summary": "Arrange numbers smallest first: 68923, 62893, 68329, 62398",
    "answer_key": ["62398", "62893", "68329", "68923"],
    "verified_answer": "62398 (smallest, then 62893, 68329, 68923)",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct ordering: 62398 < 62893 < 68329 < 68923. Solution is missing."
  },
  {
    "index": 766,
    "qid": 9021,
    "type_id": 2,
    "question_summary": "A number when divided by 4 gives a quotient of 7. The largest possible number is [?].",
    "answer_key": ["34"],
    "verified_answer": "31",
    "answer_correct": false,
    "solution_status": "NULL",
    "judgment": "NEEDS_REVISION",
    "notes": "Answer key says 34, but correct answer is 31. N = 4*7 + r where r < 4, so max r = 3, N = 28+3 = 31. 34/4 = 8 R 2 (quotient 8, not 7)."
  },
  {
    "index": 767,
    "qid": 9082,
    "type_id": 1,
    "question_summary": "In 12.756, which digit is in the hundredths place?",
    "answer_key": ["5"],
    "verified_answer": "5",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct index 0. 12.756: 1=tens, 2=ones, 7=tenths, 5=hundredths, 6=thousandths. Solution is missing."
  },
  {
    "index": 768,
    "qid": 9085,
    "type_id": 1,
    "question_summary": "In 23.489, what digit is found in the tenths place?",
    "answer_key": ["4"],
    "verified_answer": "4",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct index 1. 23.489: 2=tens, 3=ones, 4=tenths, 8=hundredths, 9=thousandths. Solution is missing."
  },
  {
    "index": 769,
    "qid": 9088,
    "type_id": 1,
    "question_summary": "In 90.512, what digit is in the tenths place?",
    "answer_key": ["5"],
    "verified_answer": "5",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct index 1. 90.512: 9=tens, 0=ones, 5=tenths, 1=hundredths, 2=thousandths. Solution is missing."
  },
  {
    "index": 770,
    "qid": 9115,
    "type_id": 2,
    "question_summary": "In 58.147: (a) tenths digit, (b) value of digit 4, (c) thousandths digit",
    "answer_key": ["1", "0.04", "7"],
    "verified_answer": "1, 0.04, 7",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "All three sub-answers correct. 58.147: tenths=1, 4 in hundredths=0.04, thousandths=7. Solution is missing."
  },
  {
    "index": 771,
    "qid": 9116,
    "type_id": 2,
    "question_summary": "In 93.562: (a) value of digit 5, (b) hundredths digit, (c) value of digit 2",
    "answer_key": ["0.5", "6", "0.002"],
    "verified_answer": "0.5, 6, 0.002",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "All correct. 93.562: 5 in tenths=0.5, hundredths=6, 2 in thousandths=0.002. Solution is missing."
  },
  {
    "index": 772,
    "qid": 9117,
    "type_id": 2,
    "question_summary": "In 17.849: (a) hundredths digit, (b) value of digit 8, (c) thousandths digit",
    "answer_key": ["4", "0.8", "9"],
    "verified_answer": "4, 0.8, 9",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "All correct. 17.849: hundredths=4, 8 in tenths=0.8, thousandths=9. Solution is missing."
  },
  {
    "index": 773,
    "qid": 9118,
    "type_id": 2,
    "question_summary": "In 64.713: (a) value of digit 1, (b) tenths digit, (c) value of digit 3",
    "answer_key": ["0.01", "7", "0.003"],
    "verified_answer": "0.01, 7, 0.003",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "All correct. 64.713: 1 in hundredths=0.01, tenths=7, 3 in thousandths=0.003. Solution is missing."
  },
  {
    "index": 774,
    "qid": 9119,
    "type_id": 2,
    "question_summary": "In 35.894: (a) thousandths digit, (b) value of digit 9, (c) tenths digit",
    "answer_key": ["4", "0.09", "8"],
    "verified_answer": "4, 0.09, 8",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "All correct. 35.894: thousandths=4, 9 in hundredths=0.09, tenths=8. Solution is missing."
  },
  {
    "index": 775,
    "qid": 9120,
    "type_id": 2,
    "question_summary": "In 78.261: (a) value of digit 6, (b) tenths digit, (c) value of digit 1",
    "answer_key": ["0.06", "2", "0.001"],
    "verified_answer": "0.06, 2, 0.001",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "All correct. 78.261: 6 in hundredths=0.06, tenths=2, 1 in thousandths=0.001. Solution is missing."
  },
  {
    "index": 776,
    "qid": 9121,
    "type_id": 2,
    "question_summary": "In 42.537: (a) hundredths digit, (b) value of digit 5, (c) thousandths digit",
    "answer_key": ["3", "0.5", "7"],
    "verified_answer": "3, 0.5, 7",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "All correct. 42.537: hundredths=3, 5 in tenths=0.5, thousandths=7. Solution is missing."
  },
  {
    "index": 777,
    "qid": 9122,
    "type_id": 2,
    "question_summary": "In 89.624: (a) value of digit 2, (b) tenths digit, (c) value of digit 4",
    "answer_key": ["0.02", "6", "0.004"],
    "verified_answer": "0.02, 6, 0.004",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "All correct. 89.624: 2 in hundredths=0.02, tenths=6, 4 in thousandths=0.004. Solution is missing."
  },
  {
    "index": 778,
    "qid": 9123,
    "type_id": 2,
    "question_summary": "In 16.375: (a) thousandths digit, (b) value of digit 7, (c) hundredths digit",
    "answer_key": ["5", "0.07", "7"],
    "verified_answer": "5, 0.07, 7",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "All correct. 16.375: thousandths=5, 7 in hundredths=0.07, hundredths=7. Solution is missing."
  },
  {
    "index": 779,
    "qid": 9124,
    "type_id": 2,
    "question_summary": "In 52.418: (a) value of digit 4, (b) hundredths digit, (c) value of digit 8",
    "answer_key": ["0.4", "1", "0.008"],
    "verified_answer": "0.4, 1, 0.008",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "All correct. 52.418: 4 in tenths=0.4, hundredths=1, 8 in thousandths=0.008. Solution is missing."
  },
  {
    "index": 780,
    "qid": 9125,
    "type_id": 2,
    "question_summary": "In 73.926: (a) tenths digit, (b) value of digit 2, (c) thousandths digit",
    "answer_key": ["9", "0.02", "6"],
    "verified_answer": "9, 0.02, 6",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "All correct. 73.926: tenths=9, 2 in hundredths=0.02, thousandths=6. Solution is missing."
  },
  {
    "index": 781,
    "qid": 9134,
    "type_id": 2,
    "question_summary": "Complete pattern: 1.2, 1.4, [?], 1.8, 2.0, [?]",
    "answer_key": ["1.6", "2.2"],
    "verified_answer": "1.6, 2.2",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Arithmetic pattern with step +0.2. Missing terms: 1.6, 2.2. Solution is missing."
  },
  {
    "index": 782,
    "qid": 9135,
    "type_id": 2,
    "question_summary": "Complete pattern: 8.5, 8.0, [?], 7.0, [?], 6.0",
    "answer_key": ["7.5", "6.5"],
    "verified_answer": "7.5, 6.5",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Arithmetic pattern with step -0.5. Missing terms: 7.5, 6.5. Solution is missing."
  },
  {
    "index": 783,
    "qid": 9136,
    "type_id": 2,
    "question_summary": "Complete pattern: 0.25, 0.50, 0.75, [?], [?], 1.50",
    "answer_key": ["1.0", "1.25"],
    "verified_answer": "1.00, 1.25",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Arithmetic pattern with step +0.25. Missing terms: 1.00, 1.25. Solution is missing."
  },
  {
    "index": 784,
    "qid": 9286,
    "type_id": 2,
    "question_summary": "Number P (2 dp) rounds to 4.7 (1 dp). Find the largest value P can be.",
    "answer_key": ["4.74"],
    "verified_answer": "4.74",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct. Numbers 4.65-4.74 round to 4.7 at 1 dp. Largest = 4.74. Solution is missing."
  },
  {
    "index": 785,
    "qid": 9679,
    "type_id": 2,
    "question_summary": "How many degrees in 1.5 complete turns?",
    "answer_key": ["540"],
    "verified_answer": "540",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct. 1 turn = 360. 1.5 turns = 1.5 * 360 = 540 degrees. Solution is missing."
  },
  {
    "index": 786,
    "qid": 9749,
    "type_id": 2,
    "question_summary": "Largest single-day increase in visitors vs previous day (graph-based)",
    "answer_key": ["150"],
    "verified_answer": "150 (cannot verify without graph)",
    "answer_correct": null,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Graph-dependent question. Answer key states 150. Cannot verify without the accompanying graph. Solution is missing."
  },
  {
    "index": 787,
    "qid": 9790,
    "type_id": 2,
    "question_summary": "Green Bonus scheme: net bonus/penalty over period (graph/table-based)",
    "answer_key": ["1"],
    "verified_answer": "1 (cannot verify without consumption data)",
    "answer_correct": null,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Data-dependent question requiring consumption table. Answer key states 1 (net bonus). Cannot verify without source data. Solution is missing."
  },
  {
    "index": 788,
    "qid": 9791,
    "type_id": 1,
    "question_summary": "Two million, eight hundred and fifty-seven thousand, three hundred and twenty-six in numerals",
    "answer_key": ["2857326"],
    "verified_answer": "2857326",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct. 2,857,326. Solution is missing."
  },
  {
    "index": 789,
    "qid": 9804,
    "type_id": 2,
    "question_summary": "Two million, seven hundred thousand and ninety-six in numerals",
    "answer_key": ["2700096"],
    "verified_answer": "2700096",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct. 2,700,096. Solution is missing."
  },
  {
    "index": 790,
    "qid": 9807,
    "type_id": 2,
    "question_summary": "Three million, eight thousand and seventy-five in numerals",
    "answer_key": ["3008075"],
    "verified_answer": "3008075",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct. 3,008,075 (not 3,080,075 which would be 'three million, eighty thousand and seventy-five'). Solution is missing."
  },
  {
    "index": 791,
    "qid": 9814,
    "type_id": 1,
    "question_summary": "Write 2357289 in words",
    "answer_key": ["Two million, three hundred and fifty-seven thousand, two hundred and eighty-nine"],
    "verified_answer": "Two million, three hundred and fifty-seven thousand, two hundred and eighty-nine",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct index 3. 2,357,289 in words. Solution is missing."
  },
  {
    "index": 792,
    "qid": 10809,
    "type_id": 2,
    "question_summary": "Kelly has 47 stamps, 6 more than John. How many stamps does John have?",
    "answer_key": ["41"],
    "verified_answer": "41",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct. John = 47 - 6 = 41 stamps. Solution is missing."
  },
  {
    "index": 793,
    "qid": 10810,
    "type_id": 2,
    "question_summary": "Leo had 24 toys in box, 12 missing. How many toys at first?",
    "answer_key": ["36"],
    "verified_answer": "36",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct. At first = 24 + 12 = 36 toys. Solution is missing."
  },
  {
    "index": 794,
    "qid": 31248,
    "type_id": 2,
    "question_summary": "Mrs Tan has 15 strawberries, puts equally in plates of 5. How many plates?",
    "answer_key": ["3"],
    "verified_answer": "3",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct. 15 / 5 = 3 plates. Solution is missing."
  },
  {
    "index": 795,
    "qid": 31253,
    "type_id": 1,
    "question_summary": "6 + 6 + 6 + 6 + 6 = [?] sixes",
    "answer_key": ["5"],
    "verified_answer": "5",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct index 0. The expression has five 6s, so it equals 5 sixes. Solution is missing."
  },
  {
    "index": 796,
    "qid": 31256,
    "type_id": 2,
    "question_summary": "Write a multiplication sentence: [?] x [?] = [?] (picture-based - stars)",
    "answer_key": ["8", "5", "40"],
    "verified_answer": "8 x 5 = 40 (cannot verify without picture)",
    "answer_correct": null,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Picture-dependent question. Answer key states 8 x 5 = 40. Cannot verify without seeing the star arrangement. Solution is missing."
  },
  {
    "index": 797,
    "qid": 31259,
    "type_id": 2,
    "question_summary": "Each chick has [?] legs.",
    "answer_key": ["2"],
    "verified_answer": "2",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct. A chick (baby chicken) has 2 legs. Solution is missing."
  },
  {
    "index": 798,
    "qid": 31263,
    "type_id": 1,
    "question_summary": "Circle the cloud that has the same answer as 4 + 6.",
    "answer_key": ["2 + 8"],
    "verified_answer": "2 + 8",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct index 1. 4+6=10, and 2+8=10. Other options: 4+5=9, 3+6=9. Solution is missing."
  },
  {
    "index": 799,
    "qid": 31264,
    "type_id": 2,
    "question_summary": "Mother bakes 7 cupcakes, children eat 5. How many left?",
    "answer_key": ["2"],
    "verified_answer": "2",
    "answer_correct": true,
    "solution_status": "NULL",
    "judgment": "GOOD",
    "notes": "Correct. 7 - 5 = 2 cupcakes left. Solution is missing."
  }
]