{
  "paper": {
    "school": "ACS",
    "year": 2022,
    "level": "P1",
    "label": "Test 1",
    "source_prefix": "ACS 2022 P1 Test 1",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "How many bears are there?",
      "answer0": "thirteen",
      "answer1": "eleven",
      "answer2": "nine",
      "answer3": "ten",
      "correct_answer": 1,
      "skill_id": 1,
      "difficulty_id": 1,
      "explanation": "Count the bears: 4 + 3 + 4 = 11, which is eleven.",
      "hints": ["Count the bears row by row.", "4 in the top row, 3 in the middle, 4 in the bottom."],
      "source": "ACS 2022 P1 Test 1 Q1",
      "image_needed": true,
      "image_options": false,
      "image_file": "q1.png",
      "notes": "Counting picture question. Exact count = 11 bears (rows of 4, 3, 4). Answer key: 2 -> 'eleven' (0-based index 1)."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "Which pair of numbers make 10?",
      "answer0": "1 and 8",
      "answer1": "2 and 6",
      "answer2": "3 and 4",
      "answer3": "6 and 4",
      "correct_answer": 3,
      "skill_id": 8,
      "difficulty_id": 1,
      "explanation": "6 + 4 = 10. The other pairs make 9, 8 and 7.",
      "hints": ["Add the two numbers in each pair.", "Look for the pair whose sum is 10."],
      "source": "ACS 2022 P1 Test 1 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Options shown as paired number cards but are plain numbers; rendered as text. Answer key: 4 (6 and 4)."
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "Elephant [?] is third in position.",
      "answer0": "E",
      "answer1": "D",
      "answer2": "C",
      "answer3": "B",
      "correct_answer": 0,
      "skill_id": 7,
      "difficulty_id": 2,
      "explanation": "The row is labelled with G as 1st (the '1st' marker is under G), so positions are counted from the right: G is 1st, F is 2nd, E is 3rd. The elephant in third position is E.",
      "hints": ["The '1st' label is under elephant G.", "Count back from G: G is 1st, F is 2nd, E is 3rd."],
      "source": "ACS 2022 P1 Test 1 Q3",
      "image_needed": true,
      "image_options": false,
      "image_file": "q3.png",
      "notes": "Ordinal position. Row left to right: A B C D E F G with '1st' marked under G (so positions counted from the right). Answer key: 1 -> option (1) = 'E' (0-based index 0). Image needed to show the elephant row and the '1st' label."
    },
    {
      "n": 4,
      "type_id": 1,
      "question": "2 more than 15 is [?].",
      "answer0": "13",
      "answer1": "14",
      "answer2": "17",
      "answer3": "18",
      "correct_answer": 2,
      "skill_id": 13,
      "difficulty_id": 1,
      "explanation": "2 more than 15 means 15 + 2 = 17.",
      "hints": ["'2 more than' means add 2.", "15 + 2 = ?"],
      "source": "ACS 2022 P1 Test 1 Q4",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: 3 -> option (3) = 17 (0-based index 2)."
    },
    {
      "n": 5,
      "type_id": 1,
      "question": "[?] - 5 = 13",
      "answer0": "18",
      "answer1": "17",
      "answer2": "8",
      "answer3": "7",
      "correct_answer": 0,
      "skill_id": 13,
      "difficulty_id": 2,
      "explanation": "The missing number minus 5 equals 13, so the number is 13 + 5 = 18.",
      "hints": ["To find the whole, add the part back: 13 + 5.", "Check: 18 - 5 = 13."],
      "source": "ACS 2022 P1 Test 1 Q5",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Stem printed with a box for the missing first number. Answer key: 1 -> option (1) = 18 (0-based index 0)."
    },
    {
      "n": 6,
      "type_id": 1,
      "question": "14 + 3 = [?]",
      "answer0": "7",
      "answer1": "8",
      "answer2": "11",
      "answer3": "17",
      "correct_answer": 3,
      "skill_id": 13,
      "difficulty_id": 1,
      "explanation": "14 + 3 = 17.",
      "hints": ["Add 3 to 14.", "Count on: 14, 15, 16, 17."],
      "source": "ACS 2022 P1 Test 1 Q6",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer key: 4 -> option (4) = 17 (0-based index 3)."
    },
    {
      "n": 7,
      "type_id": 1,
      "question": "What is the missing number in the number pattern?",
      "answer0": "15",
      "answer1": "16",
      "answer2": "17",
      "answer3": "19",
      "correct_answer": 1,
      "skill_id": 6,
      "difficulty_id": 2,
      "explanation": "The pattern decreases by 2 each step: 20, 18, ?, 14, 12, 10. The missing number is 18 - 2 = 16.",
      "hints": ["Look at how the numbers change each step.", "Each number is 2 less than the one before."],
      "source": "ACS 2022 P1 Test 1 Q7",
      "image_needed": true,
      "image_options": false,
      "image_file": "q7.png",
      "notes": "Number pattern in arrow boxes: 20, 18, ?, 14, 12, 10. Answer key: 2 -> option (2) = 16 (0-based index 1). Image needed to show the arrow-box sequence."
    },
    {
      "n": 8,
      "type_id": 1,
      "question": "What is the missing number in the number bond?",
      "answer0": "15",
      "answer1": "14",
      "answer2": "3",
      "answer3": "4",
      "correct_answer": 3,
      "skill_id": 8,
      "difficulty_id": 2,
      "explanation": "The whole is 9 and one part is 5, so the missing part is 9 - 5 = 4.",
      "hints": ["The two parts add up to the whole (9).", "9 - 5 = ?"],
      "source": "ACS 2022 P1 Test 1 Q8",
      "image_needed": true,
      "image_options": false,
      "image_file": "q8.png",
      "notes": "Number bond: whole = 9, parts = ? and 5. Answer key: 4 -> option (4) = 4 (0-based index 3). Image needed to show the number-bond diagram."
    },
    {
      "n": 9,
      "type_id": 1,
      "question": "Write the number in words.",
      "answer0": "twelve",
      "answer1": "twenty",
      "answer2": "two",
      "answer3": "twenty-one",
      "correct_answer": 0,
      "skill_id": 3,
      "difficulty_id": 1,
      "explanation": "The number 12 written in words is 'twelve'.",
      "hints": ["The number shown is 12.", "12 in words is 'twelve'."],
      "source": "ACS 2022 P1 Test 1 Q9",
      "image_needed": true,
      "image_options": false,
      "image_file": "q9.png",
      "notes": "Originally a fill-in (write 12 in words). Per spec, word-answer questions are made MCQ with 4 word options to avoid fragile exact-match grading. Answer key: 'twelve' (correct_answer index 0). Image shows '12' inside a star; distractors are plausible word forms."
    },
    {
      "n": 10,
      "type_id": 2,
      "question": "15 is between 16 and [?].",
      "answer0": "14",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 5,
      "difficulty_id": 1,
      "explanation": "The numbers around 15 are 14 and 16. Since 16 is given, the other is 14.",
      "hints": ["Count: 14, 15, 16.", "What number comes just before 15?"],
      "source": "ACS 2022 P1 Test 1 Q10",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Fill-in-blank. Answer key: 14."
    },
    {
      "n": 11,
      "type_id": 0,
      "question": "Cross out two bees with the same answer.",
      "answer0": null,
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 13,
      "difficulty_id": 2,
      "explanation": "5 + 6 = 11 and 13 - 2 = 11; these two bees share the same answer. The other bees show 12 and 7 + 3 = 10.",
      "hints": ["Work out the value on each bee.", "Find the two bees that equal the same number."],
      "source": "ACS 2022 P1 Test 1 Q11",
      "image_needed": true,
      "image_options": false,
      "image_file": "q11.png",
      "notes": "Non-standard (cross out / select). Four bees: '5+6', '12', '13-2', '7+3'. Answer key: cross out '5+6' and '13-2' (both = 11). type_id 0; answer captured here in notes. Image needed to show the four bees with their expressions."
    },
    {
      "n": 12,
      "type_id": 0,
      "question": "Arrange these numbers in order. Begin with the greatest number.",
      "answer0": null,
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 5,
      "difficulty_id": 2,
      "explanation": "Ordering from greatest to least: 20, 16, 13, 8.",
      "hints": ["Find the largest number first.", "Then the next largest, and so on."],
      "source": "ACS 2022 P1 Test 1 Q12",
      "image_needed": true,
      "image_options": false,
      "image_file": "q12.png",
      "notes": "Ordering / arrange task with four blanks (greatest first). Numbers given on cards: 13, 16, 8, 20. Answer key: 20, 16, 13, 8. Modelled as type_id 0 (multi-blank ordering, sequence answer); ordered answer captured in notes. Image shows the four number cards."
    },
    {
      "n": 13,
      "type_id": 0,
      "question": "a) Complete the number bond based on the picture. b) Write a subtraction equation based on the number bond.",
      "answer0": null,
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 8,
      "difficulty_id": 2,
      "explanation": "From the picture (7 pineapples split 5 and 2): the number bond has whole 7 with parts 5 and 2. A subtraction equation: 7 - 5 = 2.",
      "hints": ["The whole is 7; split into the two groups shown.", "Whole minus one part gives the other part."],
      "source": "ACS 2022 P1 Test 1 Q13",
      "image_needed": true,
      "image_options": false,
      "image_file": "q13.png",
      "notes": "Two-part non-standard (fill number bond + write equation). Answer key: a) parts 7 and 2 (number bond whole 7, parts 5 and 2; key lists '7 , 2'); b) 7 - 5 = 2. Picture shows pineapples split into a group of 6 and a group of 2 (whole appears 8), but the printed bond whole is 7 and the answer key treats whole=7, parts 5 and 2 -- note the picture/whole mismatch. type_id 0. Image needed for pineapple split + number-bond template."
    },
    {
      "n": 14,
      "type_id": 2,
      "question": "Bag [?] is 6th from the right.",
      "answer0": "F",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 7,
      "difficulty_id": 2,
      "explanation": "Counting from the right: C is 1st, A 2nd, E 3rd, G 4th, D 5th, F 6th. So bag F is 6th from the right.",
      "hints": ["Start counting from the right end.", "Count six bags in from the right."],
      "source": "ACS 2022 P1 Test 1 Q14",
      "image_needed": true,
      "image_options": false,
      "image_file": "q14.png",
      "notes": "Fill-in-blank (ordinal from a labelled row). Bags left to right: H, F, D, G, E, A, C (with 'left' and 'right' labels). Answer key: F. Image needed to show the labelled bag row."
    },
    {
      "n": 15,
      "type_id": 2,
      "question": "Set B has [?] more pencils than Set A.",
      "answer0": "3",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 13,
      "difficulty_id": 2,
      "explanation": "Set A has 6 pencils and Set B has 9 pencils, so Set B has 9 - 6 = 3 more.",
      "hints": ["Count the pencils in each set.", "Subtract the smaller count from the larger."],
      "source": "ACS 2022 P1 Test 1 Q15",
      "image_needed": true,
      "image_options": false,
      "image_file": "q15.png",
      "notes": "Fill-in-blank comparison. Counts: Set A = 6 pencils, Set B = 9 pencils; difference = 3. Answer key: 3. Image needed to show both pencil sets (verify counts)."
    },
    {
      "n": 16,
      "type_id": 2,
      "question": "There are 14 goldfish and 6 tortoises in a tank. How many fewer tortoises than goldfish are there? There are [?] fewer tortoises than goldfish.",
      "answer0": "8",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 15,
      "difficulty_id": 2,
      "explanation": "14 goldfish - 6 tortoises = 8. There are 8 fewer tortoises than goldfish.",
      "hints": ["'How many fewer' means subtract.", "14 - 6 = ?"],
      "source": "ACS 2022 P1 Test 1 Q16",
      "image_needed": true,
      "image_options": false,
      "image_file": "q16.png",
      "notes": "1-step subtraction word problem (story sum, 2 marks). Picture: 14 goldfish (rows 4,4,4,2) and 6 tortoises. Answer key: 14 - 6 = 8. Image helpful but optional; numbers also stated in stem. image_needed true to show the goldfish/tortoise figure."
    },
    {
      "n": 17,
      "type_id": 2,
      "question": "Mrs Lim has 12 roses. Mrs Tan has 7 roses. How many roses are there altogether? There are [?] roses altogether.",
      "answer0": "19",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 15,
      "difficulty_id": 2,
      "explanation": "12 roses + 7 roses = 19 roses altogether.",
      "hints": ["'Altogether' means add the two amounts.", "12 + 7 = ?"],
      "source": "ACS 2022 P1 Test 1 Q17",
      "image_needed": true,
      "image_options": false,
      "image_file": "q17.png",
      "notes": "1-step addition word problem (story sum, 2 marks). Picture shows 12 roses + 7 roses. Answer key: 12 + 7 = 19. Image helpful but optional; numbers also in stem. image_needed true to show the roses figure."
    }
  ]
}