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Primary 5 Mathematics Multiplication Division Quiz
Free P5 Maths Multiplication Division quiz, LongCat AI version, with questions, answers, and syllabus-aligned practice for Singapore students.
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Answers
Primary 5 Mathematics Quiz - Multiplication Division
Answer Key
Section A (10 marks)
1. 345 × 6 = 2,070
Working: 300 × 6 = 1,800; 45 × 6 = 270; 1,800 + 270 = 2,070
[2 marks] — 1 mark for correct method, 1 mark for correct answer.
2. 7,200 ÷ 8 = 900
Working: 72 ÷ 8 = 9, so 7,200 ÷ 8 = 900
[2 marks] — 1 mark for correct method, 1 mark for correct answer.
3. 1,250 × 7 = 8,750 toys
Working: 1,250 × 7 = 8,750
[2 marks] — 1 mark for correct multiplication, 1 mark for correct answer with unit.
4. 4,368 ÷ 12 = 364 eggs
Working: 4,368 ÷ 12 = 364
[2 marks] — 1 mark for correct division, 1 mark for correct answer with unit.
5. 205 × 18 = 3,690
Working: 205 × 18 = 205 × (20 − 2) = 4,100 − 410 = 3,690
[2 marks] — 1 mark for correct method, 1 mark for correct answer.
Section B (20 marks)
6. 1,234 × 25 = 30,850
Working: 1,234 × 25 = 1,234 × 100 ÷ 4 = 123,400 ÷ 4 = 30,850
[2 marks] — 1 mark for correct method, 1 mark for correct answer.
7. 9,672 ÷ 12 = 806
Working: 9,672 ÷ 12 = 806
[2 marks] — 1 mark for correct method, 1 mark for correct answer.
8. 36 × 128 = 4,608 textbooks
Working: 36 × 128 = 36 × (100 + 28) = 3,600 + 1,008 = 4,608
[2 marks] — 1 mark for correct multiplication, 1 mark for correct answer with unit.
9. 2,400 ÷ 15 = 160 full bags
Working: 2,400 ÷ 15 = 160
[2 marks] — 1 mark for correct division, 1 mark for correct answer with unit.
10. 4,506 × 37 = 166,722
Working: 4,506 × 37 = 4,506 × (40 − 3) = 180,240 − 13,518 = 166,722
[2 marks] — 1 mark for correct method, 1 mark for correct answer.
11. 15,552 ÷ 48 = 324 bottles
Working: 15,552 ÷ 48 = 324
[2 marks] — 1 mark for correct division, 1 mark for correct answer with unit.
12. 3,750 × 16 = 60,000 pages
Working: 3,750 × 16 = 3,750 × (10 + 6) = 37,500 + 22,500 = 60,000
[2 marks] — 1 mark for correct multiplication, 1 mark for correct answer with unit.
13. 81,624 ÷ 24 = 3,401
Working: 81,624 ÷ 24 = 3,401
[2 marks] — 1 mark for correct method, 1 mark for correct answer.
14. 245 × 36 = 8,820 stickers
Working: 245 × 36 = 245 × (30 + 6) = 7,350 + 1,470 = 8,820
[2 marks] — 1 mark for correct multiplication, 1 mark for correct answer with unit.
15. 1,536 ÷ 12 = 128 crates
Working: 1,536 ÷ 12 = 128
[2 marks] — 1 mark for correct division, 1 mark for correct answer with unit.
Section C (20 marks)
16. (4 marks)
Step 1: Total oranges = 15 × 288 = 4,320
Step 2: Oranges left = 4,320 − 3,200 = 1,120 oranges
[4 marks] — 1 mark for multiplication step, 1 mark for correct total, 1 mark for subtraction step, 1 mark for correct final answer with unit.
Common mistake: Forgetting to subtract the oranges sold.
17. (4 marks)
(a) 1,850 ÷ 25 = 74 boxes
(b) 1,850 − (74 × 25) = 1,850 − 1,850 = 0 T-shirts left over
[4 marks] — 2 marks for part (a): 1 for method, 1 for correct answer. 2 marks for part (b): 1 for method, 1 for correct answer.
Note: 1,850 is exactly divisible by 25, so there is no remainder.
18. (4 marks)
Step 1: Total chairs = 24 × 135 = 3,240
Step 2: Empty chairs = 3,240 − 2,800 = 440 chairs
[4 marks] — 1 mark for multiplication, 1 mark for correct total, 1 mark for subtraction, 1 mark for correct final answer with unit.
Common mistake: Multiplying incorrectly (e.g., 24 × 135 = 3,240, not 3,140).
19. (4 marks)
Step 1: Each family originally = 420**
Step 2: Each family (12 families) = 560
Step 3: Difference = 420 = $140 more
[4 marks] — 1 mark for first division, 1 mark for second division, 1 mark for subtraction, 1 mark for correct final answer with unit.
Common mistake: Only calculating one part of the question.
20. (4 marks)
(a) 5,000 ÷ 125 = 40 hours
(b) 125 × 18 = 2,250 litres
[4 marks] — 2 marks for part (a): 1 for method, 1 for correct answer. 2 marks for part (b): 1 for method, 1 for correct answer.
Common mistake: In part (b), students may mistakenly write 5,000 instead of calculating the actual amount filled in 18 hours.