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Primary 3 Mathematics Whole Numbers Quiz

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Questions

Primary 3 Mathematics Quiz - Whole Numbers

Name: ___________________________
Class: Primary 3 _______
Date: _______________
Score: _______ / 40

Duration: 45 minutes
Total Marks: 40

Instructions:

Answer all questions.
Write your answers in the spaces provided.
Show your working clearly for questions in Section B and Section C.
For multiple-choice questions, write the letter (A, B, C, or D) in the brackets provided.

Section A: Multiple-Choice Questions (10 × 1 mark = 10 marks)

For each question, choose the correct answer and write its letter in the brackets provided.

1. In 6 428, which digit is in the hundreds place?
( )
A. 6
B. 4
C. 2
D. 8

2. What is the value of the digit 7 in 7 305?
( )
A. 7
B. 70
C. 700
D. 7 000

3. Which of the following numbers is the smallest?
( )
A. 3 456
B. 3 465
C. 3 546
D. 3 564

4. Arrange the following numbers in descending order:
4 821, 4 281, 4 128, 4 812
( )
A. 4 821, 4 812, 4 281, 4 128
B. 4 821, 4 281, 4 812, 4 128
C. 4 128, 4 281, 4 812, 4 821
D. 4 812, 4 821, 4 281, 4 128

5. Round 5 673 to the nearest hundred.
( )
A. 5 600
B. 5 700
C. 5 670
D. 6 000

6. What is 3 000 + 400 + 50 + 9 written as a numeral?
( )
A. 3 459
B. 3 495
C. 3 549
D. 3 945

7. Which of the following is an odd number?
( )
A. 2 468
B. 3 579
C. 4 680
D. 5 792

8. 8 000 − 3 456 = ______
( )
A. 4 544
B. 4 554
C. 5 444
D. 5 544

9. What is the missing number in the pattern?
2 345, 2 445, 2 545, ______, 2 745
( )
A. 2 555
B. 2 645
C. 2 655
D. 2 755

10. There are 4 328 boys and 3 875 girls in a school. How many more boys than girls are there?
( )
A. 453
B. 553
C. 7 203
D. 8 203

Section B: Short-Answer Questions (10 × 2 marks = 20 marks)

Write your answers in the spaces provided. Show your working clearly.

11. Write 6 704 in words.

12. In 5 289, the digit 2 is in the __________ place and its value is __________.

13. Form the smallest 4-digit even number using the digits 3, 0, 7, 5.
(Each digit can only be used once.)
Answer: __________

14. Complete the number pattern:
7 200, 7 100, 7 000, ______, 6 800, ______

15. Round 4 386 to the nearest ten.
Answer: __________

16. Find the sum of 3 456 and 2 789.
Answer: __________

17. Find the difference between 8 000 and 3 642.
Answer: __________

18. What number is 100 more than 5 999?
Answer: __________

19. A library has 4 562 English books and 3 789 Chinese books. How many books are there in total?
Answer: __________

20. Mr Tan had 6 500 stickers. He gave 2 345 stickers to his students and 1 876 stickers to his colleagues. How many stickers did he have left?
Answer: __________

End of Quiz

Answers

Primary 3 Mathematics Quiz - Whole Numbers (Answer Key)

Total Marks: 40

Section A: Multiple-Choice Questions (10 × 1 mark = 10 marks)

1. B
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Primary 3 Mathematics Quiz - Whole Numbers

Name: ___________________________
Class: Primary 3 _______
Date: _____________

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Primary 3 Mathematics Quiz - Whole Numbers (Answer Key)

Total Marks: 40

Section A: Multiple-Choice Questions (10 × 1 mark = 10 marks)

1. B
Explanation: In 6 428, the digits are: 6 (thousands), 4 (hundreds), 2 (tens), 8 (ones). The digit in the hundreds place is 4.

2. D
Explanation: In 7 305, the digit 7 is in the thousands place. Its value is 7 × 1 000 = 7 000.

3. A
Explanation: Comparing thousands (all 3), then hundreds (all 4), then tens: 5 < 6 < 4 < 6. The smallest is 3 456.

4. A
Explanation: Descending order means largest to smallest: 4 821 > 4 812 > 4 281 > 4 128.

5. B
Explanation: 5 673 rounded to the nearest hundred: The tens digit is 7 (≥5), so round up to 5 700.

6. A
Explanation: 3 000 + 400 + 50 + 9 = 3 459.

7. B
Explanation: Odd numbers end in 1, 3, 5, 7, or 9. 3 579 ends in 9.

8. A
Explanation: 8 000 − 3 456 = 4 544.

9. B
Explanation: The pattern increases by 100 each time: 2 345, 2 445, 2 545, 2 645, 2 745.

10. A
Explanation: 4 328 − 3 875 = 453 more boys than girls.

Section B: Short-Answer Questions (10 × 2 marks = 20 marks)

11. Six thousand, seven hundred and four
(Accept: Six thousand seven hundred four)

12. hundreds; 200
Explanation: In 5 289, the digit 2 is in the hundreds place. Its value is 2 × 100 = 200.

13. 3 057
Explanation: Smallest 4-digit even number: thousands digit must be smallest non-zero (3), then smallest remaining for hundreds (0), then smallest remaining for tens (5), units must be even (7 is odd, so use 7 for tens and... wait, digits are 3,0,7,5. Even digit is 0. But 0 cannot be last if we want smallest? Actually, for smallest even number: thousands=3 (smallest non-zero), hundreds=0, tens=5, ones=7? No, 7 is odd. The even digit is 0. So number must end in 0. Smallest: 3 570? Wait. Digits: 3,0,7,5. Even digit only 0. So number ends in 0. Smallest thousands=3, then hundreds=5, tens=7, ones=0 → 3 570. But 3 057 ends in 7 (odd). Let me recalculate.
Correction: The digits are 3, 0, 7, 5. The only even digit is 0. For a number to be even, it must end in 0. The smallest 4-digit number ending in 0 using these digits: thousands place = 3 (smallest non-zero), hundreds = 5, tens = 7, ones = 0 → 3 570.
Wait, the previous answer key said 3 057. That is incorrect because 3 057 is odd. The correct answer is 3 570.

14. 6 900; 6 700
Explanation: The pattern decreases by 100 each time: 7 200, 7 100, 7 000, 6 900, 6 800, 6 700.

15. 4 390
Explanation: 4 386 rounded to the nearest ten: The ones digit is 6 (≥5), so round up the tens digit from 8 to 9 → 4 390.

16. 6 245
Working:
3 456

2 789

6 245

17. 4 358
Working:
8 000

3 642

4 358

18. 6 099
Explanation: 5 999 + 100 = 6 099.

19. 8 351
Working:
4 562

3 789

8 351

20. 2 279
Working:
Total given away: 2 345 + 1 876 = 4 221
Stickers left: 6 500 − 4 221 = 2 279

Section C: Problem Sums (5 × 2 marks = 10 marks)

21. Answer: 1 242 marbles
Working:
Ali's marbles: 3 456
Bala's marbles: 3 456 − 1 234 = 2 222
Total: 3 456 + 2 222 = 5 678
Wait, question says "How many marbles do they have altogether?"
Let me re-read: "Ali has 3 456 marbles. He has 1 234 more marbles than Bala. How many marbles do they have altogether?"
Bala = 3 456 − 1 234 = 2 222
Total = 3 456 + 2 222 = 5 678 marbles

22. Answer: 1 536 stickers
Working:
Total stickers = 4 800
Used = 2 345 + 919 = 3 264
Left = 4 800 − 3 264 = 1 536 stickers

23. Answer: 2 175 people
Working:
Adults = 3 428
Children = 3 428 − 1 253 = 2 175
There were 2 175 children.
(Note: Question asks "How many children were there?")

24. Answer: 4 312 books
Working:
Chinese books = 2 876
English books = 2 876 + 1 436 = 4 312
There are 4 312 English books.

25. Answer: $1 650** **Working:** Cost of TV =$ 2 350
Cost of washing machine = $2 350 −$ 700 = $1 650 **The washing machine cost$ 1 650.

Marking Guide for Teachers:

Section A: 1 mark per correct answer (no half marks)
Section B: 2 marks per question (1 mark for correct method/working, 1 mark for correct answer)
Section C: 2 marks per question (1 mark for correct method/working, 1 mark for correct answer with unit)
Total: 40 marks

Grade Boundaries (Suggested):

36–40: Excellent
30–35: Good
24–29: Satisfactory
Below 24: Needs Improvement