{
  "paper": {
    "school": "Rulang Primary School",
    "year": 2025,
    "level": "P5",
    "label": "Mini Test 1",
    "source_prefix": "Rulang 2025 P5 Mini Test 1",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "In 813 465, the value of the digit 8 is ____________.",
      "answer0": "800",
      "answer1": "8000",
      "answer2": "80 000",
      "answer3": "800 000",
      "correct_answer": 3,
      "skill_id": 105,
      "difficulty_id": 1,
      "explanation": "In 813 465 the digit 8 is in the hundred thousands place, so its value is \\(8 \\times 100\\,000 = 800\\,000\\). Answer: 800 000.",
      "hints": ["Find which place the 8 occupies in 813 465.", "Value = digit \\(\\times\\) place value."],
      "source": "Rulang 2025 P5 Mini Test 1 P1 Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Paper 1 Q1. Answer key: option 4 (800 000)."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "Express \\(\\dfrac{22}{3}\\) as a decimal. Give your answer correct to 1 decimal place.",
      "answer0": "7.0",
      "answer1": "7.3",
      "answer2": "7.4",
      "answer3": "8.0",
      "correct_answer": 1,
      "skill_id": 158,
      "difficulty_id": 1,
      "explanation": "\\(22 \\div 3 = 7.333...\\) Rounded to 1 decimal place gives 7.3. Answer: 7.3.",
      "hints": ["Divide 22 by 3.", "Round 7.333... to one decimal place."],
      "source": "Rulang 2025 P5 Mini Test 1 P1 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Paper 1 Q2. Answer key: option 2 (7.3)."
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "Ali gave 15 marbles to each of his 36 classmates. He had 16 marbles left. How many marbles did he have at first?",
      "answer0": "524",
      "answer1": "540",
      "answer2": "556",
      "answer3": "591",
      "correct_answer": 2,
      "skill_id": 152,
      "difficulty_id": 2,
      "explanation": "Marbles given away = \\(15 \\times 36 = 540\\). Add the 16 left: \\(540 + 16 = 556\\). Answer: 556.",
      "hints": ["Find the total marbles given away: 15 \\(\\times\\) 36.", "Add the 16 marbles he had left."],
      "source": "Rulang 2025 P5 Mini Test 1 P1 Q3",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Paper 1 Q3. Answer key: option 3 (556)."
    },
    {
      "n": 4,
      "type_id": 2,
      "question": "\\(39\\,458 = 38 \\text{ thousands} + [?] + 45 \\text{ tens}\\)<br>What is the missing number in the box?",
      "answer0": "1008",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 105,
      "difficulty_id": 2,
      "explanation": "38 thousands = 38 000 and 45 tens = 450. So the missing number = \\(39\\,458 - 38\\,000 - 450 = 1008\\). Answer: 1008.",
      "hints": ["38 thousands = 38 000 and 45 tens = 450.", "Subtract both from 39 458."],
      "source": "Rulang 2025 P5 Mini Test 1 P1 Q4",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Paper 1 Q4 [2m]. Integer answer -> FIB. Answer key: 1008."
    },
    {
      "n": 5,
      "type_id": 2,
      "question": "There is an equal number of students in Hall C and Hall D. When 50 students move from Hall C to Hall D, there will be 500 students in Hall C. How many students are in both the halls altogether?<br>Ans: [?]",
      "answer0": "1100",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 152,
      "difficulty_id": 2,
      "explanation": "After 50 leave Hall C it has 500, so Hall C had \\(500 + 50 = 550\\) at first. Hall D had the same, 550. Total = \\(550 + 550 = 1100\\). Answer: 1100.",
      "hints": ["Hall C originally had 500 + 50 = 550 students.", "Both halls were equal, so double 550."],
      "source": "Rulang 2025 P5 Mini Test 1 P1 Q5",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Paper 1 Q5 [2m]. Integer answer -> FIB. Answer key working: 500+50=550, 550+550=1100."
    },
    {
      "n": 6,
      "type_id": 2,
      "question": "Find the value of \\(8 \\times (10 + 2 \\times 3) \\div 2\\).<br>Ans: [?]",
      "answer0": "64",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 156,
      "difficulty_id": 2,
      "explanation": "Inside the bracket: \\(2 \\times 3 = 6\\), then \\(10 + 6 = 16\\). So \\(8 \\times 16 \\div 2 = 128 \\div 2 = 64\\). Answer: 64.",
      "hints": ["Work out the bracket first, doing the multiplication inside it before the addition.", "\\(8 \\times 16 \\div 2\\)."],
      "source": "Rulang 2025 P5 Mini Test 1 P1 Q6",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Paper 1 Q6 [2m]. Integer answer -> FIB. Answer key: 64."
    },
    {
      "n": 7,
      "type_id": 0,
      "question": "Peter, Mary and John shared some marbles among themselves. Peter received 4 more marbles than Mary. John received twice as many marbles as Peter. Each statement is either true, false or not possible to tell from the information given. For each statement, put a tick in the correct column.<br>(a) John had 8 more marbles than Mary.<br>(b) John had 4 more marbles than Peter.<br>(c) The children had a total of 16 marbles.",
      "answer0": null,
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 152,
      "difficulty_id": 3,
      "explanation": "Let Mary = m, so Peter = m + 4 and John = 2(m + 4). (a) John - Mary = 2(m + 4) - m = m + 8, which is 8 only if m = 0, so it is not fixed -> the claim of exactly 8 is False. (b) John - Peter = 2(m + 4) - (m + 4) = m + 4, which is 4 only if m = 0, so the claim of exactly 4 is False. (c) Total = m + (m + 4) + 2(m + 4) = 4m + 12, which depends on m -> Not possible to tell. Answer: (a) False, (b) False, (c) Not possible to tell.",
      "hints": ["Let Mary = m, Peter = m + 4, John = 2(m + 4) and form each expression.", "The total and differences depend on m, so most statements are not fixed."],
      "source": "Rulang 2025 P5 Mini Test 1 P2 Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Paper 2 Q1 [2m]. True/False/Not-possible-to-tell tick table -> interactive format with no app question type, set type_id 0 (skipped on insert). Answer key: (a) False, (b) False, (c) Not possible to tell."
    },
    {
      "n": 8,
      "type_id": 2,
      "question": "Mr Lee is 43 years old. His son, Tom, is 7 years old. How much older is Mr Lee than his son?<br>Ans: [?]",
      "answer0": "36",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 152,
      "difficulty_id": 1,
      "explanation": "Difference in age = \\(43 - 7 = 36\\) years. Answer: 36 years.",
      "hints": ["Subtract Tom's age from Mr Lee's age.", "\\(43 - 7\\)."],
      "source": "Rulang 2025 P5 Mini Test 1 P2 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Paper 2 Q2(a) [1m]. Integer answer -> FIB. Answer key working: 43 - 7 = 36."
    },
    {
      "n": 9,
      "type_id": 2,
      "question": "Mr Lee is 43 years old. His son, Tom, is 7 years old. In how many years' time will Mr Lee be 4 times as old as his son?<br>Ans: [?]",
      "answer0": "5",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 152,
      "difficulty_id": 3,
      "explanation": "The age difference stays \\(43 - 7 = 36\\) years. When Mr Lee is 4 times his son's age, the son is 1 unit and Mr Lee is 4 units, so the difference of 36 = 3 units; 1 unit = \\(36 \\div 3 = 12\\). So Tom will be 12, which is \\(12 - 7 = 5\\) years from now. Answer: 5 years.",
      "hints": ["The age gap of 36 stays the same.", "When Mr Lee is 4 times Tom, the gap is 3 units = 36; Tom will be 12, so subtract his current age 7."],
      "source": "Rulang 2025 P5 Mini Test 1 P2 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Paper 2 Q2(b) [3m]. Integer answer -> FIB. Answer key working: 36/3=12, 12-7=5."
    },
    {
      "n": 10,
      "type_id": 0,
      "question": "Read the problem. Look at the numbers in the box. Put the numbers in the blanks where you think they fit best. Each number can be used only once. Read the problem again. Do the numbers make sense?<br>(a) ____ of the colour pencils in a box are red. (b) ____ of the colour pencils are yellow and the rest are green. There are (c) ____ colour pencils in the box. There are (d) ____ more red colour pencils than green colour pencils.<br>Numbers to place: \\(\\dfrac{1}{2}\\), \\(\\dfrac{1}{3}\\), 40, 120.",
      "answer0": null,
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 174,
      "difficulty_id": 3,
      "explanation": "Place the numbers so the problem is consistent. With (c) = 120 total: (a) \\(\\dfrac{1}{2}\\) are red = 60; (b) \\(\\dfrac{1}{3}\\) are yellow = 40, so green = \\(120 - 60 - 40 = 20\\); (d) red - green = \\(60 - 20 = 40\\). All numbers used once. Answer: (a) \\(\\dfrac{1}{2}\\), (b) \\(\\dfrac{1}{3}\\), (c) 120, (d) 40.",
      "hints": ["The total number of pencils must be the larger whole number; the fractions are the red and yellow portions.", "Check that red - green gives the remaining number 40."],
      "source": "Rulang 2025 P5 Mini Test 1 P2 Q3",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Paper 2 Q3 [4m]. Number-placement puzzle with 4 ordered blanks whose answers mix fractions (1/2, 1/3) and integers (120, 40); fraction blanks cannot be FIB and the four blanks form one placement task, so set type_id 0 (skipped on insert). Answer key: (a) 1/2, (b) 1/3, (c) 120, (d) 40."
    }
  ]
}