{
  "paper": {
    "school": "Singapore Chinese Girls' School",
    "year": 2023,
    "level": "P2",
    "label": "Quiz 1",
    "source_prefix": "SCGS 2023 P2 Quiz 1",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "The value of digit 4 in the number 542 is [?].",
      "answer0": "40",
      "answer1": "54",
      "answer2": "400",
      "answer3": "4",
      "correct_answer": 0,
      "skill_id": 29,
      "difficulty_id": 1,
      "explanation": "In 542, the digit 4 is in the tens place, so its value is 4 tens = 40.",
      "hints": ["Look at which place column the 4 sits in.", "4 is in the tens place, so each ten is worth 10."],
      "source": "SCGS 2023 P2 Quiz 1 Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key gives answer (1) = 40."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "200 = [?] tens",
      "answer0": "200",
      "answer1": "20",
      "answer2": "2",
      "answer3": "0",
      "correct_answer": 1,
      "skill_id": 29,
      "difficulty_id": 1,
      "explanation": "200 = 20 tens, because 20 x 10 = 200.",
      "hints": ["How many tens make 200?", "10 tens = 100, so 20 tens = 200."],
      "source": "SCGS 2023 P2 Quiz 1 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key gives answer (2) = 20."
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "602 is the same as [?]",
      "answer0": "60 + 2",
      "answer1": "60 + 20",
      "answer2": "600 + 2",
      "answer3": "600 + 20",
      "correct_answer": 2,
      "skill_id": 29,
      "difficulty_id": 1,
      "explanation": "602 = 6 hundreds + 0 tens + 2 ones = 600 + 2.",
      "hints": ["Break 602 into hundreds, tens and ones.", "6 hundreds is 600 and 2 ones is 2."],
      "source": "SCGS 2023 P2 Quiz 1 Q3",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key gives answer (3) = 600 + 2."
    },
    {
      "n": 4,
      "type_id": 1,
      "question": "The digit 3 in 703 stands for [?].",
      "answer0": "0",
      "answer1": "3",
      "answer2": "30",
      "answer3": "300",
      "correct_answer": 1,
      "skill_id": 29,
      "difficulty_id": 1,
      "explanation": "In 703 the digit 3 is in the ones place, so it stands for 3.",
      "hints": ["Which place column is the 3 in?", "The last digit is the ones place."],
      "source": "SCGS 2023 P2 Quiz 1 Q4",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key gives answer (2) = 3."
    },
    {
      "n": 5,
      "type_id": 2,
      "question": "Eight hundred and forty written as numeral is [?].",
      "answer0": "840",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 30,
      "difficulty_id": 1,
      "explanation": "Eight hundred and forty = 8 hundreds + 4 tens = 840.",
      "hints": ["Eight hundred is 800.", "Forty is 40, so 800 + 40 = 840."],
      "source": "SCGS 2023 P2 Quiz 1 Q5",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key gives 840."
    },
    {
      "n": 6,
      "type_id": 2,
      "question": "In 275, the digit [?] is in the tens place.",
      "answer0": "7",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 29,
      "difficulty_id": 1,
      "explanation": "In 275 the digits are 2 hundreds, 7 tens, 5 ones, so 7 is in the tens place.",
      "hints": ["The middle digit of a 3-digit number is the tens place.", "Read 275 as 2 hundreds, 7 tens, 5 ones."],
      "source": "SCGS 2023 P2 Quiz 1 Q6",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key gives 7."
    },
    {
      "n": 7,
      "type_id": 2,
      "question": "300 is 10 tens more than [?].",
      "answer0": "200",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 28,
      "difficulty_id": 2,
      "explanation": "10 tens = 100, so 300 - 100 = 200.",
      "hints": ["10 tens make 100.", "Subtract 100 from 300."],
      "source": "SCGS 2023 P2 Quiz 1 Q7",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key gives 200."
    },
    {
      "n": 8,
      "type_id": 2,
      "question": "There are [?] ones in 94.",
      "answer0": "94",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 29,
      "difficulty_id": 2,
      "explanation": "94 is made up of 94 ones (94 x 1 = 94).",
      "hints": ["How many single units are in 94?", "Each whole number is that many ones."],
      "source": "SCGS 2023 P2 Quiz 1 Q8",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key gives 94."
    },
    {
      "n": 9,
      "type_id": 2,
      "question": "Write the greatest number. 879  798  789  898  987",
      "answer0": "987",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 31,
      "difficulty_id": 2,
      "explanation": "Compare the hundreds first: 987 has 9 hundreds, the largest, so 987 is the greatest.",
      "hints": ["Compare the hundreds digit first.", "The number with the largest hundreds digit is greatest."],
      "source": "SCGS 2023 P2 Quiz 1 Q9",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Original is 'Circle the greatest number' over five numbers in a table; answer is a definite value so rendered as FIB. Key gives 987."
    },
    {
      "n": 10,
      "type_id": 2,
      "question": "Complete the number pattern. 620  625  630  [?]  640  645",
      "answer0": "635",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 32,
      "difficulty_id": 1,
      "explanation": "The pattern increases by 5 each time, so the missing number is 630 + 5 = 635.",
      "hints": ["Find the difference between each pair of numbers.", "Each step adds 5."],
      "source": "SCGS 2023 P2 Quiz 1 Q10",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key gives 635."
    },
    {
      "n": 11,
      "type_id": 1,
      "question": "Write 911 in words.",
      "answer0": "Nine hundred and eleven",
      "answer1": "Nine hundred and one",
      "answer2": "Ninety-one",
      "answer3": "Nine hundred and ninety-one",
      "correct_answer": 0,
      "skill_id": 30,
      "difficulty_id": 1,
      "explanation": "911 = 9 hundreds, 1 ten, 1 one = nine hundred and eleven.",
      "hints": ["900 is nine hundred.", "11 is eleven, so it is nine hundred and eleven."],
      "source": "SCGS 2023 P2 Quiz 1 Q11",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Word answer converted to MCQ. Key gives 'Nine hundred and eleven'."
    },
    {
      "n": 12,
      "type_id": 2,
      "question": "Arrange the numbers from the smallest to the greatest. 215  535  235  125",
      "answer0": "125",
      "answer1": "215",
      "answer2": "235",
      "answer3": "535",
      "correct_answer": null,
      "skill_id": 31,
      "difficulty_id": 2,
      "explanation": "Compare hundreds then tens: 125 < 215 < 235 < 535.",
      "hints": ["Compare the hundreds digit first.", "215 and 235 share 2 hundreds, so compare their tens."],
      "source": "SCGS 2023 P2 Quiz 1 Q12",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Ordering task rendered as FIB, one blank per position. Key gives 125, 215, 235, 535."
    },
    {
      "n": 13,
      "type_id": 2,
      "question": "10 more than 500 + 30 + 8 = [?]. 100 less than 300 + 10 + 6 = [?].",
      "answer0": "548",
      "answer1": "216",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 28,
      "difficulty_id": 2,
      "explanation": "500 + 30 + 8 = 538, and 10 more is 548. 300 + 10 + 6 = 316, and 100 less is 216.",
      "hints": ["First add the place values together.", "Then add 10 (or subtract 100) from the total."],
      "source": "SCGS 2023 P2 Quiz 1 Q13",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Two-blank FIB. Key gives 548 and 216."
    }
  ]
}