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Primary 3 Mathematics Whole Numbers Quiz

Free P3 Maths Whole Numbers quiz, AI version, with questions, answers, and syllabus-aligned practice for Singapore students.

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Primary 3 Mathematics AI Generated Generated by Claude Sonnet 4 Updated 2026-08-17
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TuitionGoWhere Primary School (AI)

Primary 3 Mathematics - Whole Numbers Quiz 01 - Answer Key

Section A: Multiple Choice Questions (1 mark each)

1. C) 500
The digit 5 is in the hundreds place, so its value is 500.

2. D) 3,564
Comparing the hundreds place: 5 > 4, so 3,564 and 3,546 are larger. Comparing tens: 6 > 4, so 3,564 is the largest.

3. A) 2,800
The tens digit is 4, which is less than 5, so we round down to 2,800.

4. B) 6,672
5,672 + 1,000 = 6,672

5. B) 4,125, 4,251, 4,512, 4,521
Ascending order means from smallest to largest.

Section B: Short Answer Questions (2 marks each)

6. 6,342
Six thousand = 6,000, three hundred = 300, forty-two = 42. Total = 6,342

7. 7,842, 7,824, 7,428, 7,284
Descending order means from largest to smallest.

8. 3,030
The first 3 is in the thousands place (value = 3,000). The second 3 is in the tens place (value = 30). Sum = 3,000 + 30 = 3,030

9. 4,208
4 thousands + 2 hundreds + 0 tens + 8 ones = 4,000 + 200 + 0 + 8 = 4,208

10. 6,560
The ones digit is 5, so we round up to 6,560.

Section C: Problem Solving (2 marks each)

11. 3,800 beads
2,458 rounded to nearest hundred = 2,500
1,326 rounded to nearest hundred = 1,300
Estimated total = 2,500 + 1,300 = 3,800

12. Five thousand, eight hundred and ninety-two
5,892 = 5 thousands + 8 hundreds + 9 tens + 2 ones

13. 7,070 (Accept any valid answer like 7,071, 7,072, 7,073, 7,074, 7,075, 7,076, 7,078, 7,079, 7,170, 7,270, 7,370, 7,470, 7,570, 7,670, 7,870, 7,970)
The number must have 7 in the thousands place and 7 in the tens place.

14. 3,900
4,000 - 100 = 3,900

15. 3,850, 4,050
The pattern increases by 200 each time. 3,650 + 200 = 3,850, 3,850 + 200 = 4,050

Marking Scheme Summary

  • Section A: 5 marks (5 questions × 1 mark)
  • Section B: 10 marks (5 questions × 2 marks)
  • Section C: 10 marks (5 questions × 2 marks)
  • Total: 25 marks

End of Answer Key