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Primary 4 Mathematics Money Quiz

Free P4 Maths Money quiz, AI version, with questions, answers, and syllabus-aligned practice for Singapore students.

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Primary 4 Mathematics AI Generated Generated by DeepSeek V4 Flash Sample 04 Updated 2026-08-17

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Questions

Primary 4 Mathematics Quiz - Money

Name: ________________________________________

Class: ________________________________________

Date: ________________________________________

Score: ________ / 40

Duration: 45 minutes

Total Marks: 40

Instructions:

Answer all questions.
Show your working clearly for problem sums.
Write your answers in the spaces provided.
You may use a calculator.

Section A: Multiple-Choice Questions (Questions 1 to 5)

Choose the correct answer and write its letter in the bracket provided. Each question carries 1 mark.

1. Which of the following is the correct way to write seven dollars and five cents in decimal form? (A) $7.5 (B)$ 7.05 (C) $7.50 (D)$ 70.5

Answer: ( )

2. A pencil costs $1.20. A pen costs$ 2.50. How much more does the pen cost than the pencil? (A) $1.30 (B)$ 1.70 (C) $3.70 (D)$ 0.70

Answer: ( )

3. Mrs Tan has a $10 note. She buys a book for$ 6.85. How much change does she receive? (A) $3.15 (B)$ 4.15 (C) $3.85 (D)$ 4.85

Answer: ( )

4. Which amount is the largest? (A) $5.05 (B)$ 5.50 (C) $5.55 (D)$ 5.15

Answer: ( )

5. A packet of biscuits costs $2.40. What is the cost of 5 such packets? (A)$ 10.00 (B) $12.00 (C)$ 7.40 (D) $12.40

Answer: ( )

Section B: Short-Answer Questions (Questions 6 to 15)

Write your answer in the space provided. Show your working clearly. Each question carries 2 marks.

6. Write $12.60 in words.

7. Convert 850 cents into dollars. Give your answer in decimal form.

8. A drink costs $1.80. A sandwich costs$ 3.50. What is the total cost of the drink and the sandwich?

9. Ali has $15. He wants to buy a toy car that costs$ 8.90. How much money will he have left?

10. A pack of 6 apples costs $4.20. What is the cost of 1 apple?

11. Mr Lim has $50. He buys 3 shirts at$ 12.90 each. How much money does he have left?

12. A box of 12 markers costs $9.60. What is the cost of 1 marker?

13. Siti has $20. She spends$ 7.50 on a book and $4.80 on a pen. How much money does she have left?

14. A bag costs $25.90. A wallet costs$ 12.50. How much more does the bag cost than the wallet?

15. A shop sells 5 kg of rice for $12.50. What is the cost of 1 kg of rice?

Section C: Problem Sums (Questions 16 to 20)

Show your working clearly and write your final answer in the space provided. Each question carries 3 marks.

16. Mrs Lee bought 4 kg of chicken at $8.50 per kg and 2 kg of fish at$ 12.00 per kg. How much did she spend altogether?

17. A school raised $450 from a charity event. They used$ 125.80 to buy books and $98.50 to buy stationery. How much money did they have left?

18. A fruit seller had $200. He bought 50 kg of oranges at$ 2.40 per kg. How much money did he have left?

19. A group of 5 friends shared the cost of a $36.50 pizza equally. How much did each friend pay?

20. A shop sells a toy for $15.90. During a sale, the shop gives a discount of$ 3.50. Mr Tan buys 2 such toys during the sale. How much does he pay altogether?

End of Quiz

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Answers

Primary 4 Mathematics Quiz - Money (Answer Key)

Total Marks: 40

Section A: Multiple-Choice Questions (5 marks)

1. B

Explanation: Seven dollars and five cents means $7 and$ 0.05, which is $7.05. Option A ($ 7.5) is incorrect because it shows seven dollars and fifty cents. Option C ( $7.50) is also seven dollars and fifty cents. Option D ($ 70.5) is seventy dollars and fifty cents.
Marking: 1 mark for correct answer.

2. A

Explanation: To find how much more the pen costs, subtract the cost of the pencil from the cost of the pen: $2.50 -$ 1.20 = $1.30.
Marking: 1 mark for correct answer.

3. A

Explanation: Change = Amount paid - Cost of item = $10.00 -$ 6.85 = $3.15.
Marking: 1 mark for correct answer.

4. C

Explanation: Compare the amounts by looking at the digits after the decimal point. $5.55 has 55 cents, which is more than 50 cents ($ 5.50), 15 cents ( $5.15), and 5 cents ($ 5.05). So $5.55 is the largest.
Marking: 1 mark for correct answer.

5. B

Explanation: Cost of 5 packets = 5 × $2.40 =$ 12.00.
Marking: 1 mark for correct answer.

Section B: Short-Answer Questions (20 marks)

6. Twelve dollars and sixty cents.

Explanation: $12.60 means 12 dollars and 60 cents. In words, we write "twelve dollars and sixty cents". Remember to use the plural "dollars" and "cents" when the amount is more than one.
Marking: 2 marks for correct answer. Accept "twelve dollars and 60 cents" or "twelve dollars sixty cents".

7. $8.50

Explanation: 100 cents = $1. So 850 cents = 850 ÷ 100 =$ 8.50.
Marking: 2 marks for correct answer. 1 mark for correct method but wrong answer.

8. $5.30

Explanation: Total cost = $1.80 +$ 3.50 = $5.30.
Marking: 2 marks for correct answer with working. 1 mark for correct method but wrong answer.

9. $6.10

Explanation: Money left = $15.00 -$ 8.90 = $6.10.
Marking: 2 marks for correct answer with working. 1 mark for correct method but wrong answer.

10. $0.70

Explanation: Cost of 1 apple = $4.20 ÷ 6 =$ 0.70.
Marking: 2 marks for correct answer with working. 1 mark for correct method but wrong answer.

11. $11.30

Explanation: Cost of 3 shirts = 3 × $12.90 =$ 38.70. Money left = $50.00 -$ 38.70 = $11.30.
Marking: 2 marks for correct answer with working. 1 mark for correct method but wrong answer.

12. $0.80

Explanation: Cost of 1 marker = $9.60 ÷ 12 =$ 0.80.
Marking: 2 marks for correct answer with working. 1 mark for correct method but wrong answer.

13. $7.70

Explanation: Total spent = $7.50 +$ 4.80 = $12.30. Money left =$ 20.00 - $12.30 =$ 7.70.
Marking: 2 marks for correct answer with working. 1 mark for correct method but wrong answer.

14. $13.40

Explanation: Difference = $25.90 -$ 12.50 = $13.40.
Marking: 2 marks for correct answer with working. 1 mark for correct method but wrong answer.

15. $2.50

Explanation: Cost of 1 kg = $12.50 ÷ 5 =$ 2.50.
Marking: 2 marks for correct answer with working. 1 mark for correct method but wrong answer.

Section C: Problem Sums (15 marks)

16. $58.00

Working:
- Cost of chicken = 4 × $8.50 =$ 34.00
- Cost of fish = 2 × $12.00 =$ 24.00
- Total spent = $34.00 +$ 24.00 = $58.00
Explanation: First, find the cost of each item separately by multiplying the quantity by the price per kg. Then, add the two amounts to find the total cost.
Marking: 3 marks for correct answer with complete working. 2 marks for correct method but one calculation error. 1 mark for some correct working.

17. $225.70

Working:
- Total spent = $125.80 +$ 98.50 = $224.30
- Money left = $450.00 -$ 224.30 = $225.70
Explanation: First, add the amounts spent on books and stationery to find the total spent. Then, subtract the total spent from the amount raised to find how much is left.
Marking: 3 marks for correct answer with complete working. 2 marks for correct method but one calculation error. 1 mark for some correct working.

18. $80.00

Working:
- Cost of oranges = 50 × $2.40 =$ 120.00
- Money left = $200.00 -$ 120.00 = $80.00
Explanation: First, find the cost of the oranges by multiplying the quantity (50 kg) by the price per kg ( $2.40). Then, subtract this cost from the initial amount ($ 200) to find how much money is left.
Marking: 3 marks for correct answer with complete working. 2 marks for correct method but one calculation error. 1 mark for some correct working.

19. $7.30

Working:
- Each friend pays = $36.50 ÷ 5 =$ 7.30
Explanation: When sharing a cost equally, divide the total cost by the number of people. $36.50 divided by 5 equals$ 7.30.
Marking: 3 marks for correct answer with complete working. 2 marks for correct method but calculation error. 1 mark for some correct working.

20. $24.80

Working:
- Sale price of 1 toy = $15.90 -$ 3.50 = $12.40
- Cost of 2 toys = 2 × $12.40 =$ 24.80
Explanation: First, find the sale price of one toy by subtracting the discount from the original price. Then, multiply the sale price by 2 to find the total cost for two toys.
Marking: 3 marks for correct answer with complete working. 2 marks for correct method but one calculation error. 1 mark for some correct working.

Common Mistakes to Note:

Forgetting to align decimal points when adding or subtracting money.
Confusing cents and dollars (e.g., writing $7.5 instead of$ 7.05).
Not showing working for problem sums, which may lose method marks.
Forgetting to include the dollar sign ($) in the final answer.
Misreading "how much more" as addition instead of subtraction.