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Primary 4 Mathematics Whole Numbers Quiz

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Questions

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Primary 4 Mathematics Quiz - Whole Numbers

Name: ________________________
Class: Primary 4 _______
Date: ________________________
Score: ______ / 40

Duration: 45 minutes
Total Marks: 40

Instructions:

  1. Answer all questions.
  2. Write your answers in the spaces provided.
  3. Show your working clearly for questions in Section B and Section C.
  4. For Section A, choose the correct answer and write its number (1, 2, 3 or 4) in the brackets provided.

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

For each question, four options are given. Choose the correct answer and write its number (1, 2, 3 or 4) in the brackets provided.

  1. In the number 68,429, which digit is in the thousands place?
    (1) 6
    (2) 8
    (3) 4
    (4) 2
    Answer: (_____)

  2. What does the digit 7 stand for in 57,381?
    (1) 7
    (2) 70
    (3) 700
    (4) 7000
    Answer: (_____)

  3. Write forty-two thousand and fifteen in numerals.
    (1) 42,015
    (2) 42,105
    (3) 42,150
    (4) 42,510
    Answer: (_____)

  4. Round 38,642 to the nearest hundred.
    (1) 38,600
    (2) 38,640
    (3) 38,700
    (4) 39,000
    Answer: (_____)

  5. Which of the following numbers when rounded to the nearest thousand gives 45,000?
    (1) 44,399
    (2) 44,450
    (3) 45,499
    (4) 45,500
    Answer: (_____)

  6. What is the missing number in the pattern below?
    12,000, 12,500, 13,000, __, 14,000
    (1) 13,250
    (2) 13,500
    (3) 13,750
    (4) 13,800
    Answer: (    _)

  7. 50,000 + 3,000 + 400 + 20 + 6 = ______
    (1) 53,426
    (2) 53,462
    (3) 54,326
    (4) 54,362
    Answer: (_____)

  8. The difference between 84,000 and 29,500 is __.
    (1) 54,500
    (2) 55,500
    (3) 64,500
    (4) 65,500
    Answer: (    _)

  9. A number rounded to the nearest ten is 12,350. What is the smallest possible value of this number?
    (1) 12,340
    (2) 12,345
    (3) 12,350
    (4) 12,355
    Answer: (_____)

  10. Which of the following has the same value as 7 ten thousands + 4 thousands + 9 hundreds + 3 tens + 8 ones?
    (1) 74,938
    (2) 74,398
    (3) 79,438
    (4) 79,348
    Answer: (_____)

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

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

  1. In the number 92,705, what does the digit 2 stand for?
    Answer: ________________________ [2]

  2. Write 80,064 in words.
    Answer: ________________________ [2]

  3. Round 67,489 to the nearest thousand.
    Answer: ________________________ [2]

  4. Find the sum of 28,475 and 36,829.
    Answer: ________________________ [2]

  5. Subtract 19,387 from 50,000.
    Answer: ________________________ [2]

  6. Complete the number pattern:
    45,000, 44,600, 44,200, ______, 43,400
    Answer: ________________________ [2]

  7. A number when rounded to the nearest hundred is 24,500. What is the greatest possible value of this number?
    Answer: ________________________ [2]

  8. Multiply 3,408 by 6.
    Answer: ________________________ [2]

  9. Divide 48,360 by 4.
    Answer: ________________________ [2]

  10. The product of two numbers is 72,000. If one number is 8, what is the other number?
    Answer: ________________________ [2]

End of Quiz

Answers

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Primary 4 Mathematics Quiz - Whole Numbers (Answer Key)

Total Marks: 40

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

QnAnswerExplanation
1(2)In 68,429, the digits from left to right are: 6 (ten thousands), 8 (thousands), 4 (hundreds), 2 (tens), 9 (ones). The digit in the thousands place is 8.
2(4)In 57,381, the digit 7 is in the thousands place. Its value is 7 × 1,000 = 7,000.
3(1)"Forty-two thousand" = 42,000. "Fifteen" = 15. Combined: 42,000 + 15 = 42,015.
4(1)To round 38,642 to the nearest hundred, look at the tens digit (4). Since 4 < 5, round down. The hundreds digit (6) stays the same → 38,600.
5(3)Numbers that round to 45,000 (nearest thousand) are from 44,500 to 45,499. Only 45,499 falls in this range.
6(2)Pattern increases by 500 each time: 12,000 → 12,500 → 13,000 → 13,500 → 14,000.
7(1)50,000 + 3,000 = 53,000; 53,000 + 400 = 53,400; 53,400 + 20 = 53,420; 53,420 + 6 = 53,426.
8(1)84,000 − 29,500 = 54,500. (Check: 54,500 + 29,500 = 84,000 ✓)
9(2)Numbers rounding to 12,350 (nearest ten) are from 12,345 to 12,354. The smallest is 12,345.
10(1)7 ten thousands = 70,000; 4 thousands = 4,000; 9 hundreds = 900; 3 tens = 30; 8 ones = 8. Sum = 74,938.

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

Question 11 [2 marks]

Answer: 2,000 (or two thousand)

Working:

  • In 92,705, the digit 2 is in the thousands place.
  • Value = 2 × 1,000 = 2,000.

Marking notes: 1 mark for identifying place value (thousands), 1 mark for correct value (2,000). Accept "two thousand" in words.

Question 12 [2 marks]

Answer: Eighty thousand and sixty-four

Working:

  • 80,064 = 80,000 + 64
  • 80,000 in words = "eighty thousand"
  • 64 in words = "sixty-four"
  • Combined with "and" for the tens/ones after thousands: "eighty thousand and sixty-four"

Marking notes: 1 mark for "eighty thousand", 1 mark for "and sixty-four". Must include "and". Common error: "eighty thousand sixty-four" (missing "and").

Question 13 [2 marks]

Answer: 67,000

Working:

  • To round 67,489 to the nearest thousand, look at the hundreds digit (4).
  • Since 4 < 5, round down.
  • The thousands digit (7) stays the same, all digits to the right become 0.
  • 67,000

Marking notes: 1 mark for correct rounding decision (round down), 1 mark for correct answer. Common error: rounding up to 68,000.

Question 14 [2 marks]

Answer: 65,304

Working:

   28,475
+  36,829
---------
   65,304
  • Ones: 5 + 9 = 14 → write 4, carry 1
  • Tens: 7 + 2 + 1 = 10 → write 0, carry 1
  • Hundreds: 4 + 8 + 1 = 13 → write 3, carry 1
  • Thousands: 8 + 6 + 1 = 15 → write 5, carry 1
  • Ten thousands: 2 + 3 + 1 = 6

Marking notes: 1 mark for correct method (column addition with carrying), 1 mark for correct answer. Accept mental calculation if answer is correct.

Question 15 [2 marks]

Answer: 30,613

Working:

   50,000
-  19,387
---------
   30,613
  • Since we cannot subtract 7 from 0, we need to regroup from the ten thousands.
  • 50,000 = 40,000 + 9,000 + 900 + 90 + 10 (regrouping across zeros)
  • Ones: 10 − 7 = 3
  • Tens: 90 − 80 = 10 → write 1 (in tens place)
  • Hundreds: 900 − 300 = 600 → write 6
  • Thousands: 9,000 − 9,000 = 0 → write 0
  • Ten thousands: 40,000 − 10,000 = 30,000 → write 3

Check: 30,613 + 19,387 = 50,000 ✓

Marking notes: 1 mark for correct regrouping method, 1 mark for correct answer. This is a classic "subtraction across zeros" problem — ensure students understand the regrouping chain.

Question 16 [2 marks]

Answer: 43,800

Working:

  • Pattern decreases by 400 each time:
    • 45,000 − 400 = 44,600
    • 44,600 − 400 = 44,200
    • 44,200 − 400 = 43,800
    • 43,800 − 400 = 43,400 ✓

Marking notes: 1 mark for identifying the pattern (−400), 1 mark for correct missing number.

Question 17 [2 marks]

Answer: 24,549

Working:

  • When rounding to the nearest hundred, numbers from 24,450 to 24,549 round to 24,500.
  • The greatest possible value is 24,549.
  • Check: 24,549 → hundreds digit is 5, tens digit is 4 (< 5) → rounds down to 24,500 ✓
  • 24,550 would round up to 24,600.

Marking notes: 1 mark for understanding rounding range (24,450–24,549), 1 mark for correct greatest value. Common error: giving 24,550.

Question 18 [2 marks]

Answer: 20,448

Working:

    3,408
×       6
---------
   20,448
  • 6 × 8 = 48 → write 8, carry 4
  • 6 × 0 = 0 + 4 = 4 → write 4
  • 6 × 4 = 24 → write 4, carry 2
  • 6 × 3 = 18 + 2 = 20 → write 20

Marking notes: 1 mark for correct multiplication algorithm with carrying, 1 mark for correct answer.

Question 19 [2 marks]

Answer: 12,090

Working:

     12,090
4 ) 48,360
  • 48 ÷ 4 = 12 (ten thousands & thousands)
  • 3 ÷ 4 = 0 remainder 3 (hundreds) → bring down 6 → 36
  • 36 ÷ 4 = 9 (tens)
  • 0 ÷ 4 = 0 (ones)

Alternative check: 12,090 × 4 = 48,360 ✓

Marking notes: 1 mark for correct long division steps, 1 mark for correct answer. Watch for missing zero in the hundreds place of quotient.

Question 20 [2 marks]

Answer: 9,000

Working:

  • Product = 72,000
  • One number = 8
  • Other number = 72,000 ÷ 8 = 9,000
  • Check: 9,000 × 8 = 72,000 ✓

Marking notes: 1 mark for correct operation (division), 1 mark for correct answer. Can also reason: 72 ÷ 8 = 9, so 72,000 ÷ 8 = 9,000.

Summary of Marks

  • Section A: 10 marks
  • Section B: 20 marks
  • Total: 30 marks (Note: Quiz total is 40 marks as per header; Section A 10 + Section B 20 = 30. The remaining 10 marks would typically be in a Section C with 2–3 longer questions, but this quiz has 20 questions total as specified.)

Note to Teacher: This quiz contains 20 questions (10 MCQ + 10 Short Answer) totalling 30 marks. The header states 40 marks; if a 40-mark quiz is required, add a Section C with 2 questions worth 5 marks each (e.g., multi-step word problems).