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Primary 5 Mathematics Whole Numbers Quiz

Free P5 Maths Whole Numbers quiz, Exam version, with questions, answers, and syllabus-aligned practice for Singapore students.

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Primary 5 Mathematics From Real Exams Generated by Claude Sonnet 4 Updated 2026-08-17

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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]

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
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
What is 45 × 1000?
- A) 4,500
- B) 45,000
- C) 450,000
- D) 4,500,000
Find the value of 8 + 4 × 3 - 2.
- A) 18
- B) 34
- C) 10
- D) 22
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]

Write the following numbers in words: a) 5,042,831 b) 8,000,067
Arrange these numbers in ascending order: 3,654,782 3,645,872 3,654,827 3,546,782
Find the missing number in this pattern: 2,500,000 → 2,750,000 → 3,000,000 → ________ → 3,500,000
Calculate: 4,567 × 100 ÷ 10
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]

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

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Answers

P5 Maths Quiz: Whole Numbers - ANSWERS

Questions: 20 Time: 35 minutes Total Marks: 50

Section A: Multiple Choice (10 marks)

2 marks each

B) 70 thousand
- The digit 7 is in the ten thousands place
- 7 × 10,000 = 70,000
C) 6,800,000
- Look at the ten thousands digit: 5
- Since 5 ≥ 5, round up
- 6,754,892 → 6,800,000
B) 45,000
- 45 × 1000 = 45,000
- When multiplying by 1000, add three zeros
A) 18
- Using BODMAS: 8 + 4 × 3 - 2
- = 8 + 12 - 2
- = 20 - 2 = 18
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

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
Ascending order: 3,546,782 < 3,645,872 < 3,654,782 < 3,654,827
Missing number: Pattern increases by 250,000 each time 3,000,000 + 250,000 = 3,250,000
Calculate: 4,567 × 100 ÷ 10 = 456,700 ÷ 10 = 45,670
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

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

Total for both months: $4,876,250 +$ 5,445,150 = $10,321,400
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
Order of Operations Challenge Cost calculation:
- Coffee beans: 8 × $45 =$ 360
- Sugar: 12 × $8 =$ 96
- Milk powder: 6 × $25 =$ 150
Using brackets: (8 × 45) + (12 × 8) + (6 × 25) = 360 + 96 + 150 = $606

Change = $1,000 -$ 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