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Primary 5 Mathematics Whole Numbers Quiz

Free Exam-Derived Primary 5 Mathematics Whole Numbers quiz with questions and answers for Singapore students. This page is rendered as a direct URL so the questions and answers can be discovered without pressing in-page buttons.

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Primary 5 Mathematics From Real Exams Generated by Claude Sonnet 4 Updated 2026-06-03
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Questions

P5 Maths Quiz: Whole Numbers

Questions: 20 Time: 35 minutes Total Marks: 50

Section A: Multiple Choice (10 marks)

Choose the best answer. [2 marks each]

  1. What is the value of the digit 7 in 4,782,350?

    • A) 7 thousand
    • B) 70 thousand
    • C) 700 thousand
    • D) 7 hundred thousand

  2. Round 6,754,892 to the nearest hundred thousand.

    • A) 6,700,000
    • B) 6,750,000
    • C) 6,800,000
    • D) 7,000,000

  3. What is 45 × 1000?

    • A) 4,500
    • B) 45,000
    • C) 450,000
    • D) 4,500,000

  4. Find the value of 8 + 4 × 3 - 2.

    • A) 18
    • B) 34
    • C) 10
    • D) 22

  5. Which number is the largest?

    • A) 9,876,543
    • B) 9,867,534
    • C) 9,786,543
    • D) 9,678,534

Section B: Short Answer (20 marks)

Show your working clearly. [4 marks each]

  1. Write the following numbers in words: a) 5,042,831 b) 8,000,067

  2. Arrange these numbers in ascending order: 3,654,782 3,645,872 3,654,827 3,546,782

  3. Find the missing number in this pattern: 2,500,000 → 2,750,000 → 3,000,000 → ________ → 3,500,000

  4. Calculate: 4,567 × 100 ÷ 10

  5. Use the order of operations (BODMAS) to solve: 120 ÷ (8 + 4) × 3 - 5

Section C: Word Problems (20 marks)

Use model drawing or show your working clearly. [5 marks each]

  1. Population Problem The population of Singapore in 2023 was about 5,920,000. If the population increases by 125,000 each year, what will be the estimated population in 2026?

  2. Money Problem A shopping mall collected 4,876,250inrevenuelastmonth.Thismonth,theycollected4,876,250 in revenue last month. This month, they collected 568,900 more than last month. How much did they collect in total for both months?

  3. Factory Production A factory produces 2,400 items per day. If they work 25 days per month, how many items do they produce in 8 months? Express your answer in standard form.

  4. Order of Operations Challenge Mrs. Tan bought some items for her cafe:

    • 8 boxes of coffee beans at $45 each
    • 12 packets of sugar at $8 each
    • 6 containers of milk powder at $25 each

    She paid with a $1,000 note. How much change did she receive? Write the calculation using brackets and solve step by step.

End of Quiz

Check your answers carefully.

Answers

P5 Maths Quiz: Whole Numbers - ANSWERS

Questions: 20 Time: 35 minutes Total Marks: 50

Section A: Multiple Choice (10 marks)

2 marks each

  1. B) 70 thousand

    • The digit 7 is in the ten thousands place
    • 7 × 10,000 = 70,000

  2. C) 6,800,000

    • Look at the ten thousands digit: 5
    • Since 5 ≥ 5, round up
    • 6,754,892 → 6,800,000

  3. B) 45,000

    • 45 × 1000 = 45,000
    • When multiplying by 1000, add three zeros

  4. A) 18

    • Using BODMAS: 8 + 4 × 3 - 2
    • = 8 + 12 - 2
    • = 20 - 2 = 18

  5. A) 9,876,543

    • Compare digit by digit from left to right
    • All start with 9, next digit: 8 vs 8 vs 7 vs 6
    • A and B both have 8, next: 7 vs 6
    • A has 7, B has 6, so A is larger

Section B: Short Answer (20 marks)

4 marks each

  1. Write in words: a) 5,042,831 = Five million, forty-two thousand, eight hundred and thirty-one b) 8,000,067 = Eight million and sixty-seven

  2. Ascending order: 3,546,782 < 3,645,872 < 3,654,782 < 3,654,827

  3. Missing number: Pattern increases by 250,000 each time 3,000,000 + 250,000 = 3,250,000

  4. Calculate: 4,567 × 100 ÷ 10 = 456,700 ÷ 10 = 45,670

  5. BODMAS: 120 ÷ (8 + 4) × 3 - 5 = 120 ÷ 12 × 3 - 5 = 10 × 3 - 5 = 30 - 5 = 25

Section C: Word Problems (20 marks)

5 marks each

  1. Population Problem Current population: 5,920,000 Increase per year: 125,000 Number of years from 2023 to 2026: 3 years

    Total increase = 125,000 × 3 = 375,000 Population in 2026 = 5,920,000 + 375,000 = 6,295,000

  2. Money Problem Last month: 4,876,250Thismonth:4,876,250 This month: 4,876,250 + 568,900=568,900 = 5,445,150

    Total for both months: 4,876,250+4,876,250 + 5,445,150 = $10,321,400

  3. Factory Production Items per day: 2,400 Days per month: 25 Number of months: 8

    Items per month = 2,400 × 25 = 60,000 Items in 8 months = 60,000 × 8 = 480,000

  4. Order of Operations Challenge Cost calculation:

    • Coffee beans: 8 × 45=45 = 360
    • Sugar: 12 × 8=8 = 96
    • Milk powder: 6 × 25=25 = 150

    Using brackets: (8 × 45) + (12 × 8) + (6 × 25) = 360 + 96 + 150 = $606

    Change = 1,000−1,000 - 606 = $394

Marking Scheme:

  • Section A: 1 mark for correct letter, 1 mark for working (where applicable)
  • Section B: 2 marks for method, 2 marks for correct answer
  • Section C: 2 marks for understanding problem, 2 marks for method/working, 1 mark for correct answer

Total: 50 marks