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Primary 4 Mathematics Whole Numbers Quiz
Free P4 Maths Whole Numbers quiz, AI version, with questions, answers, and syllabus-aligned practice for Singapore students.
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TuitionGoWhere Primary School (AI)
Primary 4 Mathematics - Whole Numbers Quiz 01 - Answer Key
Section A: Multiple Choice Questions (1 mark each)
1. D) 7,000
The digit 7 is in the thousands place, so its value is 7,000.
2. B) 46,000
The hundreds digit is 6, which is ≥ 5, so we round up to 46,000.
3. C) 66,789
56,789 + 10,000 = 66,789
4. A) 97,530
To form the largest number, arrange digits in descending order: 9, 7, 5, 3, 0
5. A) 48
48,000 ÷ 1,000 = 48
Section B: Short Answer Questions (2 marks each)
6. 72,405
Seventy-two thousand = 72,000, four hundred = 400, five = 5
7. 45,312, 45,321, 54,231, 54,321
Ascending order means from smallest to largest.
8. 79,900
80,000 - 100 = 79,900
9. 60,006 (or any valid answer like 60,016, 60,026, etc., or 61,006, 62,006, etc.)
The number must have 6 in the ten-thousands place and 6 in the ones place.
10. 50,000, 55,000
The pattern increases by 5,000 each time.
Section C: Problem Solving (2 marks each)
11. 24,000 students
12,456 ≈ 12,000 (rounded to nearest thousand)
11,897 ≈ 12,000 (rounded to nearest thousand)
Estimated total = 12,000 + 12,000 = 24,000
12. 78,700
The tens digit is 5, so we round up. 78,654 ≈ 78,700
13. 85,000 toys
8,500 × 10 = 85,000
14. 95,000 - 26,250*
15. 54,221 visitors
45,678 + 8,543 = 54,221
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