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Primary 4 Mathematics Whole Numbers Quiz

Free P4 Maths Whole Numbers quiz, Kimi2.6 AI version, with questions, answers, and syllabus-aligned practice for Singapore students.

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Primary 4 Mathematics AI Generated Generated by Kimi K2.6 Free Updated 2026-08-27

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Questions

Primary 4 Mathematics Quiz - Whole Numbers

Name: _______________________________ Class: ___________ Date: ___________

Duration: 40 minutes
Total Marks: 40 marks
Instructions: Answer all questions. Show your working clearly. Calculators are not allowed.

Section A: Multiple Choice (Questions 1-5)

Choose the correct answer. Each question carries 1 mark.

1. What does the digit 7 stand for in the number 47,293?

A) 7
B) 70
C) 700
D) 7,000

Answer: _______________

2. Which of the following is seventy-two thousand and eight written in figures?

A) 72,008
B) 72,080
C) 72,800
D) 7,208

Answer: _______________

3. Round 86,514 to the nearest thousand.

A) 86,000
B) 86,500
C) 87,000
D) 90,000

Answer: _______________

4. Which number is the greatest?

A) 58,964
B) 59,048
C) 58,999
D) 59,004

Answer: _______________

5. In the number pattern below, what is the missing number?

37,250, 37,500, _______, 38,000, 38,250

A) 37,650
B) 37,750
C) 37,850
D) 37,950

Answer: _______________

Section B: Short Answer (Questions 6-14)

Answer each question in the space provided. Show your working.

6. Write 63,049 in words.
[2 marks]

7. In the number 84,726, which digit is in the ten thousands place?
What does this digit stand for?
[2 marks]

8. Arrange these numbers from smallest to largest: 45,832; 45,283; 45,382; 45,238
[2 marks]

9. Round 49,607 to: (a) the nearest ten [1 mark] (b) the nearest hundred [1 mark] (c) the nearest thousand [1 mark]

10. Complete the number pattern: 12,450, 13,450, _______, 15,450, _______
Explain the rule. [2 marks]

11. Find the sum of 24,368 and 18,947.
[2 marks]

12. Subtract 19,856 from 50,000.
[2 marks]

13. A school library has 34,250 books. After a book donation drive, the library has 41,875 books. How many books were donated?
[2 marks]

14. A factory produces 8,450 packets of noodles each day. How many packets does it produce in 5 days?
[2 marks]

Section C: Problem Solving (Questions 15-20)

Show all your working clearly. Each question carries 3 marks.

15. The population of Tampines estate is 56,483. The population of Bedok estate is 68,725.

(a) Round the population of Tampines to the nearest thousand. [1 mark]

(b) Find the difference between the two populations. [1 mark]

(c) A newspaper reported that "about 70,000 people live in Bedok." Do you agree? Explain your answer using the approximation symbol (≈). [1 mark]

16.

Table for Q16 (P4 Maths)

Generated table for Q16.

Use the table above.

(a) Which museum had the most visitors? [1 mark]

(b) Round the number of visitors to the Science Centre Singapore to the nearest hundred. [1 mark]

17.

Number Line for Q17 (P4 Maths)

Generated number_line for Q17.

Use the number line above.

(a) What number does Point B represent? [1 mark]

(b) What is the difference between the numbers at Point A and Point D? [1 mark]

18. A point-of-sale system prints receipts with 5-digit transaction numbers. The first receipt of the day is numbered 24,750.

(a) What is the number on the 5th receipt? [1 mark]

(b) After printing 100 receipts, what is the last receipt number? [1 mark]

(c) If the system rounds each receipt number to the nearest hundred for reporting, what number would the 5th receipt be reported as? [1 mark]

19.

Diagram for Q19 (P4 Maths)

Generated diagram for Q19.

Use the place value chart above.

(a) Write the largest possible 5-digit number that can be made by filling in the empty boxes with the digits 2, 5, and 8 (use each digit once). [1 mark]

(b) Write the smallest possible 5-digit number that can be made by filling in the empty boxes with the digits 2, 5, and 8 (use each digit once). [1 mark]

20. A school has three fund-raising campaigns.

Campaign A raised $34,580
Campaign B raised $8,750 more than Campaign A
Campaign C raised $12,645 less than Campaign B

(a) How much did Campaign B raise? [1 mark]

(b) How much did Campaign C raise? [1 mark]

END OF QUIZ

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Answers

Primary 4 Mathematics Quiz - Whole Numbers (Answer Key)

Total Marks: 40 marks

Section A: Multiple Choice (Questions 1-5)

1 mark each

1. Answer: D) 7,000

Explanation: In the number 47,293, the digit 7 is in the thousands place. The thousands place is the fourth digit from the right. To find what the digit stands for, multiply the digit by its place value: 7 × 1,000 = 7,000.

Common mistake: Choosing C) 700 means confusing thousands with hundreds place.

2. Answer: A) 72,008

Explanation: "Seventy-two thousand" gives us 72,000. "And eight" means we add 8 to the ones place. We need to put 0 in the hundreds and tens places as placeholders: 72,008.

Teaching note: The word "and" separates the thousands from the ones. Zero placeholders are needed for empty places.

3. Answer: C) 87,000

Explanation: To round 86,514 to the nearest thousand, look at the hundreds digit (5). Since 5 is equal to or greater than 5, we round up: 86,514 → 87,000.

Rounding rule: Look at the digit to the right of the place you're rounding to. If it's 5 or more, round up. If it's 4 or less, round down.

4. Answer: B) 59,048

Explanation: Compare digit by digit from left (ten thousands place):

All have 5 in ten thousands place
Compare thousands: 58,xxx vs 59,xxx → 59,xxx is larger (B and D)
Compare hundreds: 59,048 vs 59,004 → 0 = 0, continue
Compare tens: 4 vs 0 → 4 > 0, so 59,048 is greatest

5. Answer: B) 37,750

Explanation: Find the pattern by subtracting consecutive terms: 37,500 − 37,250 = 250. The rule is "add 250 each time." So: 37,250, 37,500, 37,750, 38,000, 38,250. Check: 37,750 + 250 = 38,000 ✓

Section B: Short Answer (Questions 6-14)

6. Answer: Sixty-three thousand and forty-nine Marks: 2 marks

Explanation: Break down the number:

63,000 = sixty-three thousand
049 = forty-nine (note: we say "and" before the tens/ones part when there's no hundreds)

Common mistake: Writing "sixty-three thousand, forty-nine" without "and", or saying "sixty-three thousand, four hundred and nine" by misreading 049.

7. Answer: The digit 8 is in the ten thousands place. It stands for 80,000 (eighty thousand). Marks: 2 marks (1 mark for identifying digit; 1 mark for value)

Explanation: In 84,726, reading from left to right:

8 is in the first position → ten thousands place
8 × 10,000 = 80,000

8. Answer: 45,238, 45,283, 45,382, 45,832 Marks: 2 marks

Explanation: All numbers have 45 in thousands place. Compare the hundreds digit:

45,238: 2
45,283: 2
45,382: 3
45,832: 8

Then compare tens for 45,238 and 45,283: 3 < 8, so 45,238 < 45,283.

Method: Compare digits from left to right, stopping when you find a difference.

9. Answers:

(a) 49,610 [1 mark]
(b) 49,600 [1 mark]
(c) 50,000 [1 mark]

Total: 3 marks

Explanation:

(a) Nearest ten: Look at ones digit (7). 7 ≥ 5, so round up: 49,607 → 49,610
(b) Nearest hundred: Look at tens digit (0). 0 < 5, so round down: 49,607 → 49,600
(c) Nearest thousand: Look at hundreds digit (6). 6 ≥ 5, so round up: 49,607 → 50,000

10. Answer: 14,450; 16,450. The rule is "add 1,000 each time." Marks: 2 marks (1 mark for numbers; 1 mark for rule)

Explanation: 13,450 − 12,450 = 1,000. Check: 14,450 + 1,000 = 15,450 ✓, and 15,450 + 1,000 = 16,450 ✓

11. Answer: 43,315 Marks: 2 marks

Working:

  24,368
+ 18,947
--------
  43,315

Step-by-step:

Ones: 8 + 7 = 15, write 5, carry 1
Tens: 6 + 4 + 1 = 11, write 1, carry 1
Hundreds: 3 + 9 + 1 = 13, write 3, carry 1
Thousands: 4 + 8 + 1 = 13, write 3, carry 1
Ten thousands: 2 + 1 + 1 = 4

12. Answer: 30,144 Marks: 2 marks

Working:

  50,000
- 19,856
--------
  30,144

Step-by-step (using regrouping/borrowing):

Ones: 0 − 6, need to borrow. 10 − 6 = 4
Tens: 9 − 5 = 4 (after borrowing)
Hundreds: 9 − 8 = 1 (after borrowing)
Thousands: 9 − 9 = 0 (after borrowing)
Ten thousands: 4 − 1 = 3

13. Answer: 7,625 books were donated. Marks: 2 marks

Working:

  41,875  (new total)
- 34,250  (original)
--------
   7,625

Explanation: The difference between the new and original number of books gives the donation amount.

14. Answer: 42,250 packets Marks: 2 marks

Working: 8,450 × 5 = ?

Method: 8,000 × 5 = 40,000; 450 × 5 = 2,250; Total = 42,250

Or:

  8,450
×     5
-------
 42,250

Section C: Problem Solving (Questions 15-20)

3 marks each

15. Answers:

(a) 56,000 [1 mark]
(b) 12,242 [1 mark]
(c) Disagree. 68,725 ≈ 69,000 (nearest thousand) or 68,725 ≈ 70,000 (nearest ten thousand). Using nearest thousand, the statement is not accurate.

Working and explanation:

(a) 56,483: hundreds digit is 4, so round down → 56,000

(b) 68,725 − 56,483 = 12,242

  68,725
- 56,483
--------
  12,242

(c) Using nearest thousand: 68,725 ≈ 69,000, not 70,000. However, to nearest ten thousand: 68,725 ≈ 70,000. The newspaper is approximately correct if rounding to ten thousands, but should specify. Accept reasoned answers with ≈ used correctly.

Marking note: Award 1 mark for correct use of ≈ symbol with any valid rounding explanation.

16. Answers based on expected table:

(a) Science Centre Singapore [1 mark]
(b) 51,600 [1 mark]
(c) 77,980 [1 mark]

Working: (a) Compare: 51,638 > 42,856 > 35,124 > 28,947

(b) 51,638: hundreds digit is 6 ≥ 5, round up → 51,600... wait: 51,638 → look at tens digit (3) for nearest hundred. 3 < 5, so 51,600.

Correction: For nearest hundred, look at tens digit: 3 < 5, so 51,638 → 51,600.

  42,856
+ 35,124
--------
  77,980

Expected visual: Table must show four museums with specified numbers for answer to be valid.

17. Answers based on expected number line:

(a) 67,500 [1 mark]
(b) 1,000 [1 mark]
(c) 68,750 [1 mark]

Working: (a) Point B is marked at 67,500 (halfway between 67,000 and 68,000, or 7.5 units from 60,000 where each unit = 1,000)

(b) Point A = 63,000; Point D = 62,000; Difference = 63,000 − 62,000 = 1,000

Or: Difference is 2,500; half is 1,250; 67,500 + 1,250 = 68,750

Expected visual: Number line must show positions at 62,000 (D), 63,000 (A), 65,000 (C), 67,500 (B) between 60,000 and 70,000.

18. Answers:

(a) 24,754 [1 mark]
(b) 24,849 [1 mark] (Correction: 24,750 + 99 = 24,849 for 100th receipt, or 24,750 + 100 − 1 = 24,849)
(c) 24,800 [1 mark]

Working: (a) 5th receipt: 24,750 + 4 = 24,754 (since first is 24,750, second is 24,751, etc.)

Alternative interpretation: If "first receipt numbered 24,750" means that's the starting number, then 5th receipt = 24,750 + 4 = 24,754.

(b) 100 receipts: 24,750 + 99 = 24,849 (or 24,750 + 100 − 1 = 24,849)

19. Answers:

(a) 86,524 [1 mark]
(b) 26,504 [1 mark]
(c) 27,000 [1 mark]

Working from expected visual: Place value chart shows: _ 6 _ _ 4 with digits 2, 5, 8 to fill three empty places.

(a) Largest number: Put largest remaining digit in highest empty place (ten thousands):

Ten thousands: 8
Hundreds: 5
Tens: 2
Result: 86,524

(b) Smallest number: Put smallest remaining digit in highest empty place, but ten thousands cannot be 0. Digits available: 2, 5, 8. Smallest for ten thousands is 2:

Ten thousands: 2
Hundreds: 0? No, we must use 5 and 8. Hundreds: 5, Tens: 8, or vice versa.
For smallest: 26,584 or 26,854? Compare: 26,504 would require 0, but we must use 2, 5, 8.

Wait — re-reading: The empty boxes are Ten Thousands, Hundreds, Tens. We place 2, 5, 8 in these three places.

(b) Smallest: 2 in Ten Thousands, then 0 not available... Actually we need minimum: 2, then 5, then 8 in remaining: 26,584? Or 26,854?

26,504 is wrong (no 0). With digits 2,5,8: options are 26,584, 26,854, 28,654, etc.

Smallest: 26,854? No wait — put smallest digit in highest value place: 2 (ten thousands), then 5 (hundreds), then 8 (tens): 26,584

Or 2 (ten thousands), 5 (tens), 8 (hundreds): 25,684? No, hundreds is higher place than tens.

Places: Ten Thousands, Thousands, Hundreds, Tens, Ones Filled: [blank], 6, [blank], [blank], 4

To fill: Ten Thousands, Hundreds, Tens with 2, 5, 8.

For smallest: 2 (ten thousands), then 5 (hundreds), then 8 (tens): 26,584

Wait — 5 hundreds vs 8 hundreds: Actually we want smallest overall number, so after fixing ten thousands as 2, we arrange 5 and 8 in remaining places to minimize: 5 in hundreds, 8 in tens gives 26,584. If we swap: 28,564... no that's larger.

Actually comparing 26,584 vs 26,854: 26,584 < 26,854. So smallest is 26,584.

Marking correction for (b): Accept 26,584 as correct answer.

20. Answers:

(a) $43,330 [1 mark]
(b) $30,685 [1 mark]
(c) $108,595 [1 mark]

Working: (a) Campaign B = 34,580 + 8,750 = 43,330

  34,580
+  8,750
--------
  43,330

(b) Campaign C = 43,330 − 12,645 = 30,685

  43,330
- 12,645
--------
  30,685

   34,580
   43,330
+  30,685
---------
  108,595

END OF ANSWER KEY