{
  "paper": {
    "school": "Pei Hwa",
    "year": 2022,
    "level": "P3",
    "label": "Practice Paper 3",
    "source_prefix": "Pei Hwa 2022 P3 Practice Paper 3",
    "has_answer_key": true,
    "notes": "PDF internal title reads 'P3 Math Practice Paper 4'; source_prefix follows the .url/filename label 'Practice Paper 3' as instructed. level_id=4."
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "Which of the following is the same as 7535?",
      "answer0": "700 + 50 + 3 + 5",
      "answer1": "700 + 50 + 30 + 5",
      "answer2": "7000 + 500 + 3 + 5",
      "answer3": "7000 + 500 + 30 + 5",
      "correct_answer": 3,
      "skill_id": 66,
      "difficulty_id": 1,
      "explanation": "7535 = 7000 + 500 + 30 + 5 (thousands, hundreds, tens, ones).",
      "hints": ["Break the number into place values.", "The 5 in the tens place is worth 30, not 3."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 4 (option index 3)."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "Which one of the following numbers has the smallest value?",
      "answer0": "7504",
      "answer1": "7405",
      "answer2": "7540",
      "answer3": "7450",
      "correct_answer": 1,
      "skill_id": 68,
      "difficulty_id": 1,
      "explanation": "Compare hundreds digits: 7405 has 4 hundreds, the smallest, so 7405 is smallest.",
      "hints": ["Compare digit by digit from the left.", "Look at the hundreds place."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 2 (option index 1)."
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "A box contained 7 doughnuts. Jane bought 9 boxes of doughnuts. How many doughnuts were there altogether?",
      "answer0": "16",
      "answer1": "56",
      "answer2": "63",
      "answer3": "79",
      "correct_answer": 2,
      "skill_id": 76,
      "difficulty_id": 1,
      "explanation": "7 x 9 = 63 doughnuts.",
      "hints": ["Multiply doughnuts per box by number of boxes.", "7 x 9 = 63."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q3",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 3 (option index 2)."
    },
    {
      "n": 4,
      "type_id": 1,
      "question": "What is the value of the digit 7 in the number 9837?",
      "answer0": "7",
      "answer1": "70",
      "answer2": "700",
      "answer3": "7000",
      "correct_answer": 0,
      "skill_id": 66,
      "difficulty_id": 1,
      "explanation": "The 7 is in the ones place, so its value is 7.",
      "hints": ["Identify the place of the digit 7.", "It is in the ones column."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q4",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 1 (option index 0)."
    },
    {
      "n": 5,
      "type_id": 1,
      "question": "Fanny had 3 ten-dollar notes and 2 fifty-cent coins. She bought a toy which cost $6.50. How much money had she left?",
      "answer0": "$24.50",
      "answer1": "$25.50",
      "answer2": "$35.50",
      "answer3": "$37.50",
      "correct_answer": 0,
      "skill_id": 83,
      "difficulty_id": 2,
      "explanation": "3 x $10 = $30; 2 x $0.50 = $1; total $31. $31 - $6.50 = $24.50.",
      "hints": ["Add the notes and coins first.", "$30 + $1 = $31, then subtract $6.50."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q5",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 1 (option index 0)."
    },
    {
      "n": 6,
      "type_id": 1,
      "question": "The height of the door in the classroom is about [?].",
      "answer0": "20 cm",
      "answer1": "2 cm",
      "answer2": "200 cm",
      "answer3": "2000 cm",
      "correct_answer": 2,
      "skill_id": 84,
      "difficulty_id": 1,
      "explanation": "A classroom door is about 2 m, which is 200 cm.",
      "hints": ["A door is about 2 metres tall.", "Convert 2 m to cm."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q6",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 3 (option index 2)."
    },
    {
      "n": 7,
      "type_id": 1,
      "question": "A rectangle is divided into 9 equal parts. What fraction of the rectangle is shaded?",
      "answer0": "5/9",
      "answer1": "4/9",
      "answer2": "4/8",
      "answer3": "4/5",
      "correct_answer": 1,
      "skill_id": 77,
      "difficulty_id": 1,
      "explanation": "4 of the 9 equal parts are shaded, so the fraction is 4/9.",
      "hints": ["Count the shaded parts.", "There are 9 parts in total."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q7",
      "image_needed": true,
      "image_options": false,
      "image_file": "q7.png",
      "image_page": 3,
      "image_loc": "top of page, below the question stem (3x3 grid rectangle with 4 cells shaded)",
      "notes": "Key: 2 (option index 1). 4 shaded cells out of 9."
    },
    {
      "n": 8,
      "type_id": 1,
      "question": "Look at the volume of water in each container. What is the total amount of water in the two containers?",
      "answer0": "1300 ml",
      "answer1": "1100 ml",
      "answer2": "800 ml",
      "answer3": "300 ml",
      "correct_answer": 0,
      "skill_id": 85,
      "difficulty_id": 2,
      "explanation": "Left container shows 1 l (1000 ml); right container shows 300 ml. Total = 1000 + 300 = 1300 ml.",
      "hints": ["Read each container's level.", "1 l = 1000 ml; add the two amounts."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q8",
      "image_needed": true,
      "image_options": false,
      "image_file": "q8.png",
      "image_page": 3,
      "image_loc": "middle of page, two beaker figures side by side (left at 1 l, right at 300 ml)",
      "notes": "Key: 1 (option index 0). Left=1 l=1000 ml, right=300 ml."
    },
    {
      "n": 9,
      "type_id": 1,
      "question": "Which of the following fractions is expressed in its simplest form?",
      "answer0": "6/7",
      "answer1": "2/4",
      "answer2": "8/10",
      "answer3": "2/12",
      "correct_answer": 0,
      "skill_id": 78,
      "difficulty_id": 1,
      "explanation": "6/7 cannot be simplified (no common factor). 2/4=1/2, 8/10=4/5, 2/12=1/6.",
      "hints": ["A fraction is in simplest form if numerator and denominator share no common factor.", "Check each option for a common factor."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q9",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 1 (option index 0)."
    },
    {
      "n": 10,
      "type_id": 1,
      "question": "The figures are made up of identical squares. Which figure has the shortest perimeter?",
      "answer0": "A",
      "answer1": "B",
      "answer2": "C",
      "answer3": "D",
      "correct_answer": 1,
      "skill_id": 96,
      "difficulty_id": 2,
      "explanation": "Figure B (a compact 2x2-style arrangement) has the fewest exposed edges, giving the shortest perimeter.",
      "hints": ["Count the exposed unit edges of each figure.", "More compact shapes have shorter perimeters."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q10",
      "image_needed": true,
      "image_options": false,
      "image_file": "q10.png",
      "image_page": 4,
      "image_loc": "upper-middle of page, four figures labelled A B C D made of identical squares",
      "notes": "Key: 2 (option index 1, figure B)."
    },
    {
      "n": 11,
      "type_id": 1,
      "question": "What is the time shown on the clock?",
      "answer0": "10 minutes to 5",
      "answer1": "10 minutes to 6",
      "answer2": "10 minutes past 5",
      "answer3": "10 minutes past 6",
      "correct_answer": 1,
      "skill_id": 89,
      "difficulty_id": 2,
      "explanation": "Minute hand points to 10 (50 min), hour hand approaching 6: 5:50 = 10 minutes to 6.",
      "hints": ["The minute hand on 10 means 50 minutes.", "Use 'to' when past the half hour."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q11",
      "image_needed": true,
      "image_options": false,
      "image_file": "q11.png",
      "image_page": 5,
      "image_loc": "top-centre of page, analogue clock face below the question",
      "notes": "Key: 2 (option index 1). Clock reads 5:50."
    },
    {
      "n": 12,
      "type_id": 1,
      "question": "In the figure, which angle is smaller than a right angle?",
      "answer0": "Angle a",
      "answer1": "Angle b",
      "answer2": "Angle c",
      "answer3": "Angle d",
      "correct_answer": 0,
      "skill_id": 99,
      "difficulty_id": 2,
      "explanation": "Angle a is the acute angle (smaller than a right angle) in the quadrilateral.",
      "hints": ["A right angle is 90 degrees (a square corner).", "Look for the angle that is sharper than a corner."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q12",
      "image_needed": true,
      "image_options": false,
      "image_file": "q12.png",
      "image_page": 5,
      "image_loc": "middle of page, a quadrilateral with angles labelled a, b, c, d",
      "notes": "Key: 1 (option index 0, angle a). Options use 'angle' for the math angle symbol."
    },
    {
      "n": 13,
      "type_id": 1,
      "question": "The graph shows the number of books read by four boys. Who read the least number of books?",
      "answer0": "Terry",
      "answer1": "Cheng Won",
      "answer2": "Ali",
      "answer3": "Ravi",
      "correct_answer": 3,
      "skill_id": 102,
      "difficulty_id": 1,
      "explanation": "Ravi's bar is the shortest, so Ravi read the least number of books.",
      "hints": ["Find the shortest bar.", "Match it to the name below."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q13",
      "image_needed": true,
      "image_options": false,
      "image_file": "q13.png",
      "image_page": 6,
      "image_loc": "top of page, bar graph with bars for Terry, Cheng Won, Ali, Ravi",
      "notes": "Key: 4 (option index 3, Ravi)."
    },
    {
      "n": 14,
      "type_id": 1,
      "question": "Mrs Lee has 100 fish balls. She wants to sell them in sticks of 3. How many sticks of fish balls can she sell at most?",
      "answer0": "30",
      "answer1": "31",
      "answer2": "33",
      "answer3": "34",
      "correct_answer": 2,
      "skill_id": 74,
      "difficulty_id": 2,
      "explanation": "100 / 3 = 33 remainder 1, so 33 full sticks of 3.",
      "hints": ["Divide 100 by 3.", "Ignore the remainder; only complete sticks count."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q14",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 4 (option index 3)."
    },
    {
      "n": 15,
      "type_id": 1,
      "question": "What is the missing number in the number pattern? 94, 82, 70, 58, [?], 34",
      "answer0": "12",
      "answer1": "38",
      "answer2": "46",
      "answer3": "56",
      "correct_answer": 2,
      "skill_id": 69,
      "difficulty_id": 2,
      "explanation": "The pattern decreases by 12 each time: 58 - 12 = 46.",
      "hints": ["Find the difference between consecutive terms.", "Each term is 12 less than the one before."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q15",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 3 (option index 2). MCQ; pattern shown inline."
    },
    {
      "n": 16,
      "type_id": 2,
      "question": "Write eight thousand and two in figures. [?]",
      "answer0": "8002",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 67,
      "difficulty_id": 1,
      "explanation": "Eight thousand and two = 8000 + 2 = 8002.",
      "hints": ["Eight thousand is 8000.", "Add two ones."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q16",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "ANSWER-KEY DISCREPANCY: key prints 8009, but 'eight thousand and two' = 8002. Used the verbatim-correct value 8002; key appears to be a typo."
    },
    {
      "n": 17,
      "type_id": 2,
      "question": "Find the value of 1/2 + 3/10. Give your answer in its simplest form. [?]",
      "answer0": "4/5",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 81,
      "difficulty_id": 2,
      "explanation": "1/2 = 5/10; 5/10 + 3/10 = 8/10 = 4/5.",
      "hints": ["Make the denominators the same.", "1/2 = 5/10, then add."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q17",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 4/5."
    },
    {
      "n": 18,
      "type_id": 2,
      "question": "Form the smallest 4-digit number using the digits 0, 3, 4 and 8. [?]",
      "answer0": "3048",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 68,
      "difficulty_id": 2,
      "explanation": "Smallest non-zero digit (3) goes first, then ascending: 3048.",
      "hints": ["The first digit cannot be 0.", "Put the smallest allowed digit first, then ascending."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q18",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 3048."
    },
    {
      "n": 19,
      "type_id": 2,
      "question": "The difference between two numbers is 5204. The smaller number is 150. What is the larger number? [?]",
      "answer0": "5354",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 70,
      "difficulty_id": 2,
      "explanation": "Larger = smaller + difference = 150 + 5204 = 5354.",
      "hints": ["Difference = larger - smaller.", "Add the difference to the smaller number."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q19",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 5354."
    },
    {
      "n": 20,
      "type_id": 2,
      "question": "Danny had some cards. He bought another 6 boxes of cards. Each box contained 5 cards. Then he had 2046 cards. How many cards did he have at first? [?]",
      "answer0": "2016",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "6 x 5 = 30 cards bought; 2046 - 30 = 2016 cards at first.",
      "hints": ["Find how many cards he bought: 6 x 5.", "Subtract that from 2046."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q20",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 6x5=30, 2046-30=2016."
    },
    {
      "n": 21,
      "type_id": 2,
      "question": "Alice has 25 sweets and 6 plates. She wants to put 7 sweets on each plate. How many more sweets does she need? [?]",
      "answer0": "17",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "She needs 6 x 7 = 42 sweets; 42 - 25 = 17 more.",
      "hints": ["Find total sweets needed: 6 x 7.", "Subtract the 25 she already has."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q21",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 17."
    },
    {
      "n": 22,
      "type_id": 2,
      "question": "When a number is divided by 8, it gives a quotient of 14 and a remainder of 4. What is the number? [?]",
      "answer0": "116",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 74,
      "difficulty_id": 2,
      "explanation": "Number = 8 x 14 + 4 = 112 + 4 = 116.",
      "hints": ["Number = divisor x quotient + remainder.", "8 x 14 = 112, then add 4."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q22",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 116."
    },
    {
      "n": 23,
      "type_id": 2,
      "question": "The graph shows the amount of money spent by 4 children in a week. How much did they spend in total? [?]",
      "answer0": "$51",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 104,
      "difficulty_id": 2,
      "explanation": "Alan $8 + Betty $21 + Caili $12 + Danish $10 = $51.",
      "hints": ["Read each child's bar value.", "Add all four amounts."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q23",
      "image_needed": true,
      "image_options": false,
      "image_file": "q23.png",
      "image_page": 9,
      "image_loc": "upper portion of page, bar graph (Alan, Betty, Caili, Danish) with $ scale 0-25",
      "notes": "Key: 21+8+12+10=$51. Answer field prefixed with $."
    },
    {
      "n": 24,
      "type_id": 2,
      "question": "Mrs Ravi spent $17.85 at a supermarket. She spent $3.55 more than Mrs Singh. How much did Mrs Singh spend? [?]",
      "answer0": "$14.30",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 83,
      "difficulty_id": 2,
      "explanation": "Mrs Singh spent $17.85 - $3.55 = $14.30.",
      "hints": ["'More than' means Mrs Singh spent less.", "Subtract $3.55 from $17.85."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q24",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: $14.30. Answer field prefixed with $."
    },
    {
      "n": 25,
      "type_id": 2,
      "question": "Express 1047 m in km and m. [?] km [?] m",
      "answer0": "1",
      "answer1": "47",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 86,
      "difficulty_id": 2,
      "explanation": "1047 m = 1000 m + 47 m = 1 km 47 m.",
      "hints": ["1 km = 1000 m.", "Split 1047 into 1000 and the remainder."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q25",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 1047m = 1km 47m. Two blanks: km then m."
    },
    {
      "n": 26,
      "type_id": 2,
      "question": "Express the mass of 2 books in kg and g. [?] kg [?] g",
      "answer0": "1",
      "answer1": "500",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 85,
      "difficulty_id": 2,
      "explanation": "The scale reads 1 kg 500 g for the 2 books.",
      "hints": ["Read the pointer on the kg scale.", "It points between 1 and 2 kg, halfway = 500 g."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q26",
      "image_needed": true,
      "image_options": false,
      "image_file": "q26.png",
      "image_page": 11,
      "image_loc": "upper-left of page, two books on a kitchen weighing scale (dial marked 0,2,4,6 kg)",
      "notes": "Key: 1kg 500g. Two blanks: kg then g. Read dial from figure."
    },
    {
      "n": 27,
      "type_id": 0,
      "question": "Draw a line CD perpendicular to the line AB. The point D is provided.",
      "answer0": null,
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 101,
      "difficulty_id": 2,
      "explanation": "Draw line from D meeting AB at a right angle (90 degrees).",
      "hints": [],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q27",
      "image_needed": true,
      "image_options": false,
      "image_file": "q27.png",
      "image_page": 11,
      "image_loc": "middle of page, slanted line segment AB with point D marked below",
      "notes": "INTERACTIVE drawing task (draw perpendicular line) - type_id 0, no value answer. Key: line CD drawn perpendicular to AB. Skipped on insert."
    },
    {
      "n": 28,
      "type_id": 2,
      "question": "Arrange the following fractions from the greatest to the smallest. 3/4, 1/2, 7/8 [?], [?], [?]",
      "answer0": "7/8",
      "answer1": "3/4",
      "answer2": "1/2",
      "answer3": null,
      "correct_answer": null,
      "skill_id": 79,
      "difficulty_id": 2,
      "explanation": "Common denominator 8: 3/4=6/8, 1/2=4/8, 7/8=7/8. Greatest to smallest: 7/8, 3/4, 1/2.",
      "hints": ["Convert all to eighths.", "7/8 > 6/8 > 4/8."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q28",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 7/8, 3/4, 1/2 (greatest first). Ordering -> FIB, one blank per position."
    },
    {
      "n": 29,
      "type_id": 2,
      "question": "James ran around a rectangular field which measured 60 m by 70 m once. What was the total distance that he ran? [?] m",
      "answer0": "260",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 96,
      "difficulty_id": 2,
      "explanation": "Perimeter = 60 + 70 + 60 + 70 = 260 m.",
      "hints": ["Running around once = the perimeter.", "Add all four sides."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q29",
      "image_needed": true,
      "image_options": false,
      "image_file": "q29.png",
      "image_page": 12,
      "image_loc": "upper-left of page, rectangle labelled 60 m (top) and 70 m (side)",
      "notes": "Key: 60+70+60+70=260m. Answer unit m."
    },
    {
      "n": 30,
      "type_id": 2,
      "question": "The figure is made up of 5 identical rectangles. The breadth of each rectangle is 4 cm. What is the area of one rectangle? [?] cm2",
      "answer0": "48",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 97,
      "difficulty_id": 3,
      "explanation": "3 horizontal rectangles stacked = the height of the 2 vertical side rectangles, so length = 3 x 4 = 12 cm. Area = 12 x 4 = 48 cm2.",
      "hints": ["Use the breadths to find the length of one rectangle.", "Area = length x breadth = 12 x 4."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q30",
      "image_needed": true,
      "image_options": false,
      "image_file": "q30.png",
      "image_page": 12,
      "image_loc": "middle of page, composite figure of 5 identical rectangles (2 vertical sides, 3 horizontal stacked between)",
      "notes": "Key: 4x3=12 (length), 12x4=48 cm2. Answer unit cm2."
    },
    {
      "n": 31,
      "type_id": 2,
      "question": "8096 people visited a fun fair. 5988 of them were adults and the rest were children. How many more adults than children visited the fun fair? [?]",
      "answer0": "3880",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 71,
      "difficulty_id": 2,
      "explanation": "Children = 8096 - 5988 = 2108; adults - children = 5988 - 2108 = 3880.",
      "hints": ["First find the number of children.", "Then subtract children from adults."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q31",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 8096-5988=2108; 5988-2108=3880 more adults."
    },
    {
      "n": 32,
      "type_id": 2,
      "question": "Penny bought 134 apples. She packed the apples equally into bags of 5. How many bags of 5 apples did she have? [?] How many apples were not packed? [?]",
      "answer0": "26",
      "answer1": "4",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 74,
      "difficulty_id": 2,
      "explanation": "134 / 5 = 26 remainder 4. So 26 bags and 4 apples not packed.",
      "hints": ["Divide 134 by 5.", "The quotient is the bags; the remainder is unpacked apples."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q32",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: (a) 134/5=26 bags (b) 4 not packed. Two-part -> two blanks."
    },
    {
      "n": 33,
      "type_id": 2,
      "question": "Mrs Yong had $600. She gave her son $120 and divided the remaining amount equally among her 3 daughters. How much did each daughter get? [?]",
      "answer0": "$160",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "$600 - $120 = $480; $480 / 3 = $160 each.",
      "hints": ["Subtract the son's share first.", "Divide the remainder by 3."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q33",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 600-120=480; 480/3=160."
    },
    {
      "n": 34,
      "type_id": 2,
      "question": "Tammy started her piano practice at 9 a.m. She practised for 1 h 50 min. Then she spent 1 h 40 min on her homework. How long did she take for her piano practice and homework in total? (Give your answer in hours and minutes) [?] At what time did she complete her homework? [?]",
      "answer0": "3 h 30 min",
      "answer1": "12.30 p.m.",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 93,
      "difficulty_id": 3,
      "explanation": "1 h 50 min + 1 h 40 min = 3 h 30 min. Starting 9 a.m. + 3 h 30 min = 12.30 p.m.",
      "hints": ["Add the two durations (carry 60 min = 1 h).", "Add the total time to 9 a.m."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q34",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: (a) 3h 30min (b) 12.30 p.m. Two-part -> two blanks."
    },
    {
      "n": 35,
      "type_id": 2,
      "question": "Ali has 37 coins. Peiling has 4 times as many coins as Ali. How many coins does Peiling have? [?] Shuming has twice as many coins as Peiling. How many coins does Shuming have? [?]",
      "answer0": "148",
      "answer1": "296",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "Peiling = 37 x 4 = 148; Shuming = 148 x 2 = 296.",
      "hints": ["Multiply Ali's coins by 4 for Peiling.", "Double Peiling's coins for Shuming."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q35",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: (a) 37x4=148 (b) 148x2=296. Two-part -> two blanks."
    },
    {
      "n": 36,
      "type_id": 2,
      "question": "Mr Lee has a total of 20 ducks and horses in his farm. The animals have 48 legs in all. How many horses does Mr Lee have? [?] How many ducks does Mr Lee have? [?]",
      "answer0": "4",
      "answer1": "16",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 3,
      "explanation": "Assume all 20 are horses: 20 x 4 = 80 legs. Excess 80 - 48 = 32; each duck has 2 fewer legs (4-2=2), so ducks = 32/2 = 16; horses = 20 - 16 = 4.",
      "hints": ["Assume all animals are horses and count legs.", "Each swap to a duck removes 2 legs."],
      "source": "Pei Hwa 2022 P3 Practice Paper 3 Q36",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: (a) 4 horses (b) 16 ducks. Two-part -> two blanks (horses then ducks)."
    }
  ]
}