{
  "paper": {
    "school": "ACS Primary",
    "year": 2025,
    "level": "P3",
    "label": "End of Year Exam",
    "source_prefix": "ACS Primary 2025 P3 End of Year Exam",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "Which of the following is fifty-six thousand and thirty in numerals?",
      "answer0": "5613",
      "answer1": "5630",
      "answer2": "56 013",
      "answer3": "56 030",
      "correct_answer": 3,
      "skill_id": 66,
      "difficulty_id": 1,
      "explanation": "Fifty-six thousand and thirty = 56 000 + 30 = 56 030. The answer is 56 030.",
      "hints": ["Fifty-six thousand is 56 000.", "Add thirty: 56 000 + 30 = 56 030."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 4."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "Which fraction is not equivalent to 2/3?",
      "answer0": "6/9",
      "answer1": "9/12",
      "answer2": "10/15",
      "answer3": "14/21",
      "correct_answer": 1,
      "skill_id": 77,
      "difficulty_id": 2,
      "explanation": "6/9 = 2/3, 10/15 = 2/3, 14/21 = 2/3 (all reduce to 2/3). 9/12 = 3/4, which is NOT 2/3. The answer is 9/12.",
      "hints": ["Reduce each fraction to simplest form.", "Multiply 2/3 top and bottom by the same number to find equivalents."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 2."
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "James had 42 chairs. He arranged all the chairs in rows of 7. How many rows of chairs did he have?",
      "answer0": "6",
      "answer1": "7",
      "answer2": "35",
      "answer3": "49",
      "correct_answer": 0,
      "skill_id": 73,
      "difficulty_id": 1,
      "explanation": "Number of rows = 42 ÷ 7 = 6. The answer is 6.",
      "hints": ["Divide the total chairs by chairs per row.", "42 ÷ 7 = 6."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q3",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 1."
    },
    {
      "n": 4,
      "type_id": 1,
      "question": "Arrange the following numbers in decreasing order.\n4881, 4818, 4188, 4848",
      "answer0": "4881, 4818, 4848, 4188",
      "answer1": "4881, 4848, 4818, 4188",
      "answer2": "4848, 4818, 4881, 4188",
      "answer3": "4848, 4881, 4818, 4188",
      "correct_answer": 1,
      "skill_id": 68,
      "difficulty_id": 2,
      "explanation": "Compare by place value. Thousands all 4. Hundreds: 4881 and 4848 have 8, 4818 has 8, 4188 has 1. Ordering greatest to smallest: 4881, 4848, 4818, 4188. The answer is option 2.",
      "hints": ["Decreasing order means greatest first.", "Compare digits from left (thousands) to right."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q4",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 2. Number set shown inline in stem."
    },
    {
      "n": 5,
      "type_id": 1,
      "question": "What is the value of the missing digit?",
      "answer0": "1",
      "answer1": "2",
      "answer2": "0",
      "answer3": "8",
      "correct_answer": 0,
      "skill_id": 70,
      "difficulty_id": 2,
      "explanation": "The subtraction is 74?? − 3897 = 3519, where the boxed ? is the tens digit. The full minuend = 3519 + 3897 = 7416, so the digits are 7, 4, 1, 6 and the missing digit is 1. The answer is 1.",
      "hints": ["Add the difference and the number subtracted to find the top number.", "3519 + 3897 = 7416, so the missing digit is 1."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q5",
      "image_needed": true,
      "image_options": false,
      "image_file": "q5.png",
      "image_page": 4,
      "image_bbox": [0.27, 0.13, 0.82, 0.32],
      "image_loc": "vertical subtraction layout near top of page, with a boxed ? in the top row",
      "notes": "Key: option 1. Figure is the column-subtraction working with a boxed missing digit."
    },
    {
      "n": 6,
      "type_id": 1,
      "question": "Which of the following division equations leaves a remainder of 3?",
      "answer0": "645 ÷ 6",
      "answer1": "753 ÷ 4",
      "answer2": "816 ÷ 3",
      "answer3": "935 ÷ 8",
      "correct_answer": 0,
      "skill_id": 74,
      "difficulty_id": 2,
      "explanation": "645 ÷ 6 = 107 r3. 753 ÷ 4 = 188 r1. 816 ÷ 3 = 272 r0. 935 ÷ 8 = 116 r7. Only 645 ÷ 6 leaves remainder 3. The answer is 645 ÷ 6.",
      "hints": ["Work out each division and look at the remainder.", "645 ÷ 6 = 107 remainder 3."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q6",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 1."
    },
    {
      "n": 7,
      "type_id": 1,
      "question": "Gary had some stamps. After he bought another 39 stamps, he had 8 times as many stamps as his sister. His sister had 48 stamps. How many stamps did Gary have at first?",
      "answer0": "312",
      "answer1": "345",
      "answer2": "384",
      "answer3": "423",
      "correct_answer": 1,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "After buying, Gary had 8 × 48 = 384 stamps. At first he had 384 − 39 = 345 stamps. The answer is 345.",
      "hints": ["First find how many Gary had after buying: 8 × 48.", "Then subtract the 39 he bought."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q7",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 2."
    },
    {
      "n": 8,
      "type_id": 1,
      "question": "The bar graph shows the goals scored by 4 boys in a soccer game.\nHow many fewer goals were scored by Caleb than Ben?",
      "answer0": "20",
      "answer1": "25",
      "answer2": "30",
      "answer3": "55",
      "correct_answer": 1,
      "skill_id": 104,
      "difficulty_id": 2,
      "explanation": "From the bar graph, Ben scored 40 goals and Caleb scored 15 goals. 40 − 15 = 25 fewer goals. The answer is 25.",
      "hints": ["Read Ben's bar and Caleb's bar from the graph.", "Subtract Caleb's goals from Ben's goals."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q8",
      "image_needed": true,
      "image_options": false,
      "image_file": "q8.png",
      "image_page": 5,
      "image_bbox": [0.2, 0.42, 0.83, 0.66],
      "image_loc": "horizontal bar graph titled 'Number of Goals Scored by Boys in a Soccer Match' in middle of page",
      "notes": "Key: option 2. Ben=40, Caleb=15."
    },
    {
      "n": 9,
      "type_id": 1,
      "question": "How many acute angles are there inside the figure?",
      "answer0": "5",
      "answer1": "8",
      "answer2": "3",
      "answer3": "4",
      "correct_answer": 3,
      "skill_id": 99,
      "difficulty_id": 2,
      "explanation": "The arrow (block-arrow) figure has 4 acute angles: the two at the arrow tip and the two reflex/notch vertices form acute interior angles. Counting the acute interior angles gives 4. The answer is 4.",
      "hints": ["An acute angle is smaller than a right angle.", "Check each corner of the arrow figure."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q9",
      "image_needed": true,
      "image_options": false,
      "image_file": "q9.png",
      "image_page": 6,
      "image_bbox": [0.3, 0.13, 0.68, 0.29],
      "image_loc": "outline of a right-pointing block arrow near top of page",
      "notes": "Key: option 4. Count of acute angles in the arrow = 4."
    },
    {
      "n": 10,
      "type_id": 1,
      "question": "David bought a basketball for $21.98. He gave the cashier a $100 note. How much change did he receive?",
      "answer0": "$78.02",
      "answer1": "$79.98",
      "answer2": "$81.98",
      "answer3": "$121.98",
      "correct_answer": 0,
      "skill_id": 83,
      "difficulty_id": 1,
      "explanation": "Change = $100.00 − $21.98 = $78.02. The answer is $78.02.",
      "hints": ["Subtract the cost from the amount given.", "100.00 − 21.98 = 78.02."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q10",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 1."
    },
    {
      "n": 11,
      "type_id": 2,
      "question": "Anitha had a roll of ribbon which was 5 m long. She used 127 cm of it to tie a present. What was the length of the remaining ribbon?\n[?] cm",
      "answer0": "373",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 87,
      "difficulty_id": 2,
      "explanation": "Convert 5 m = 500 cm. Remaining = 500 − 127 = 373 cm. The answer is 373 cm.",
      "hints": ["Change 5 m to centimetres: 5 m = 500 cm.", "Subtract: 500 − 127 = 373 cm."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q11",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 373 cm. Answer unit cm."
    },
    {
      "n": 12,
      "type_id": 2,
      "question": "What is the missing number in the number pattern shown?\n6010, 7010, 7020, [?], 8030, 9030, 9040",
      "answer0": "8020",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 69,
      "difficulty_id": 2,
      "explanation": "The pattern alternates +1000 then +10: 6010 (+1000) 7010 (+10) 7020 (+1000) 8020 (+10) 8030 (+1000) 9030 (+10) 9040. The missing number is 8020.",
      "hints": ["Look at the difference between consecutive terms.", "It alternates adding 1000 then adding 10; 7020 + 1000 = 8020."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q12",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 8020. Pattern shown inline in stem."
    },
    {
      "n": 13,
      "type_id": 2,
      "question": "Arrange the following fractions from the smallest to the greatest.\n3/7, 1/5, 9/11\n[?], [?], [?]",
      "answer0": "1/5",
      "answer1": "3/7",
      "answer2": "9/11",
      "answer3": null,
      "correct_answer": null,
      "skill_id": 79,
      "difficulty_id": 3,
      "explanation": "Compare sizes: 1/5 = 0.2, 3/7 ≈ 0.43, 9/11 ≈ 0.82. Smallest to greatest: 1/5, 3/7, 9/11.",
      "hints": ["Convert each to a decimal or compare against 1/2.", "1/5 is smallest, 9/11 is closest to 1."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q13",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 1/5, 3/7, 9/11 (smallest to greatest). Ordering FIB, one blank per position."
    },
    {
      "n": 14,
      "type_id": 1,
      "question": "The bar graph shows the number of toys sold by a shop from March to June. Which statement is correct?",
      "answer0": "21 toys were sold in April; 10 more toys were sold in May than June. (a True, b True)",
      "answer1": "21 toys were sold in April is True; 10 more in May than June is False.",
      "answer2": "21 toys were sold in April is False; 10 more in May than June is True.",
      "answer3": "21 toys were sold in April is False; 10 more in May than June is False.",
      "correct_answer": 2,
      "skill_id": 102,
      "difficulty_id": 2,
      "explanation": "From the graph: March 28, April 20, May 40, June 30. (a) 21 sold in April is FALSE (20 were sold). (b) 10 more in May than June: 40 − 30 = 10, so TRUE. The answer is: (a) False, (b) True.",
      "hints": ["Read each bar carefully.", "April is 20 (not 21); May 40 minus June 30 = 10."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q14",
      "image_needed": true,
      "image_options": false,
      "image_file": "q14.png",
      "image_page": 9,
      "image_bbox": [0.18, 0.38, 0.78, 0.66],
      "image_loc": "vertical bar graph titled 'Number of Toys Sold from March to June' in middle of page",
      "notes": "Original is a True/False tick table (a False, b True). Reworded into 4 MCQ statement-pairs so it can be served; correct pair is (a False, b True) = option 3."
    },
    {
      "n": 15,
      "type_id": 0,
      "question": "Draw a line perpendicular to CD passing through Point P.",
      "answer0": null,
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 100,
      "difficulty_id": 2,
      "explanation": "On the square grid, draw a straight line through point P that meets line CD at a right angle (90 degrees). CD runs diagonally; the perpendicular through P is the diagonal in the opposite direction.",
      "hints": ["Perpendicular lines meet at a right angle.", "The new line must pass through P and cross CD at 90 degrees."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q15",
      "image_needed": true,
      "image_options": false,
      "image_file": "q15.png",
      "image_page": 10,
      "image_bbox": [0.22, 0.13, 0.78, 0.45],
      "image_loc": "square grid with diagonal line CD and point P, near top of page",
      "notes": "Interactive draw-a-line task; type_id 0 (skipped on insert). Key answer: perpendicular line drawn through P meeting CD at right angle."
    },
    {
      "n": 16,
      "type_id": 2,
      "question": "A countdown party lasted 3 h 52 min and ended at 01 46 the next day. What time did the countdown party start? Express your answer using the 24-hour clock.\n[?]",
      "answer0": "21 54",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 92,
      "difficulty_id": 3,
      "explanation": "Start = end − duration = 01 46 − 3 h 52 min. 01 46 = 25 46 (next-day). 25 46 − 3 h 52 min = 21 54. The party started at 21 54.",
      "hints": ["Subtract the duration from the end time.", "Subtracting 3 h 52 min from 01 46 gives 21 54 the previous day."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q16",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 21 54 (24-hour clock)."
    },
    {
      "n": 17,
      "type_id": 2,
      "question": "A farmer packed 1421 apples into boxes. Each box can hold 9 apples. After filling all the boxes, how many apples were left unpacked?\n[?]",
      "answer0": "8",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 74,
      "difficulty_id": 2,
      "explanation": "1421 ÷ 9 = 157 remainder 8. The remainder is the apples left over, so 8 apples were left unpacked.",
      "hints": ["Divide 1421 by 9 and look at the remainder.", "1421 ÷ 9 = 157 r8."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q17",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 8."
    },
    {
      "n": 18,
      "type_id": 2,
      "question": "3243 students joined a school carnival. 1478 of them were boys. How many fewer boys than girls joined the carnival?\n[?]",
      "answer0": "287",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 71,
      "difficulty_id": 2,
      "explanation": "Girls = 3243 − 1478 = 1765. Difference = 1765 − 1478 = 287. There were 287 fewer boys than girls.",
      "hints": ["First find the number of girls: total − boys.", "Then subtract boys from girls."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q18",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 287."
    },
    {
      "n": 19,
      "type_id": 2,
      "question": "Ryan bought a pair of sports shoes that cost $68.95 and a sports bag for $24.90. How much did he spend in total?\n$[?]",
      "answer0": "93.85",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 82,
      "difficulty_id": 2,
      "explanation": "Total = $68.95 + $24.90 = $93.85. He spent $93.85 in total.",
      "hints": ["Add the two amounts.", "68.95 + 24.90 = 93.85."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q19",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key printed '68.75 + 24.90 = $93.85' — the 68.75 is a typo for 68.95 (question states $68.95); the total $93.85 is correct. Answer unit dollars."
    },
    {
      "n": 20,
      "type_id": 2,
      "question": "The capacity of Container A is 17 l more than Container B and 15 l less than Container C. What is the total capacity of Container B and Container C if Container A has a capacity of 51 l?\n[?] l",
      "answer0": "100",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 87,
      "difficulty_id": 3,
      "explanation": "Container B = 51 − 17 = 34 l. Container C = 51 + 15 = 66 l. Total of B and C = 34 + 66 = 100 l.",
      "hints": ["A is 17 more than B, so B = A − 17.", "A is 15 less than C, so C = A + 15; then add B and C."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q20",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 100 L. Answer unit litres."
    },
    {
      "n": 21,
      "type_id": 2,
      "question": "A stadium had 1845 spectators in the morning. In the afternoon, 976 more spectators entered the stadium, while 1258 spectators left after the morning event. How many spectators were in the stadium by the end of the day?\n[?]",
      "answer0": "1563",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 71,
      "difficulty_id": 2,
      "explanation": "Total after arrivals = 1845 + 976 = 2821. After 1258 left: 2821 − 1258 = 1563 spectators by the end of the day.",
      "hints": ["Add the spectators who entered.", "Then subtract those who left: 2821 − 1258 = 1563."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q21",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key printed '1845 − 976 = 2821' — the minus is a typo for plus (1845 + 976 = 2821); final answer 1563 is correct."
    },
    {
      "n": 22,
      "type_id": 2,
      "question": "A factory produces 112 cartons of juice every day. Each carton contains 6 packets of juice. The packets are then packed equally into 8 delivery boxes. How many packets of juice are in each delivery box?\n[?]",
      "answer0": "84",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "Total packets = 112 × 6 = 672. Packets per box = 672 ÷ 8 = 84. Each delivery box holds 84 packets.",
      "hints": ["First find the total packets: cartons × packets per carton.", "Then divide by the number of boxes: 672 ÷ 8 = 84."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q22",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 84."
    },
    {
      "n": 23,
      "type_id": 2,
      "question": "Fazil and Ramesh each bought a strawberry cake during recess. Fazil ate 1/4 of his cake during recess. During little bites, Ramesh ate 2/5 of his cake and Fazil ate another 5/12 of his cake.\n(a) What fraction of Ramesh's cake was left?\n(b) What fraction of Fazil's cake was eaten?\n(a) [?] (b) [?]",
      "answer0": "3/5",
      "answer1": "2/3",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 81,
      "difficulty_id": 3,
      "explanation": "(a) Ramesh ate 2/5, so left = 1 − 2/5 = 3/5. (b) Fazil ate 1/4 + 5/12 = 3/12 + 5/12 = 8/12 = 2/3 of his cake.",
      "hints": ["(a) Left = whole − fraction eaten.", "(b) Make 1/4 and 5/12 have a common denominator (12), then add."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q23",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Two-part question combined; answer0 = part (a) 3/5, answer1 = part (b) 2/3."
    },
    {
      "n": 24,
      "type_id": 2,
      "question": "Jia Wei spent a total of 2 h 35 min revising for his English and Mathematics tests. He spent 42 min revising for his English test. He finished revising for his Mathematics test at 20 20. What time did he start revising for his Mathematics test? Express your answer using the 24-hour clock.\n[?]",
      "answer0": "18 27",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 92,
      "difficulty_id": 3,
      "explanation": "Maths revision time = 2 h 35 min − 42 min = 1 h 53 min. Start = 20 20 − 1 h 53 min = 18 27. He started at 18 27.",
      "hints": ["First find the Maths revision duration: total − English time.", "Subtract that duration from the finish time 20 20."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q24",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 18 27 (24-hour clock)."
    },
    {
      "n": 25,
      "type_id": 2,
      "question": "A piece of wire was bent into a rectangle measuring 13 cm by 5 cm.\n(a) What was the area of the rectangle?\n(b) The same piece of wire was bent into a square. What was the area of the square?\n(a) [?] cm² (b) [?] cm²",
      "answer0": "65",
      "answer1": "81",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 97,
      "difficulty_id": 3,
      "explanation": "(a) Area of rectangle = 13 × 5 = 65 cm². (b) Wire length (perimeter) = 13 + 5 + 13 + 5 = 36 cm. Square side = 36 ÷ 4 = 9 cm. Area = 9 × 9 = 81 cm².",
      "hints": ["(a) Area of rectangle = length × breadth.", "(b) The wire's total length is the perimeter; divide by 4 for the square's side, then square it."],
      "source": "ACS Primary 2025 P3 End of Year Exam Q25",
      "image_needed": true,
      "image_options": false,
      "image_file": "q25.png",
      "image_page": 17,
      "image_bbox": [0.38, 0.14, 0.68, 0.23],
      "image_loc": "rectangle figure labelled 5 cm (height) and 13 cm (base) near top of page",
      "notes": "Two-part; answer0 = part (a) 65 cm², answer1 = part (b) 81 cm². The 13 cm by 5 cm dimensions are taken from the rectangle figure. A blank square figure also appears for part (b)."
    }
  ]
}