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Primary 6 PSLE Mathematics Addition Subtraction Quiz

Free P6 PSLE Maths Addition Subtraction quiz, AI version, with questions, answers, and PSLE-focused practice for Singapore students.

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Primary 6 PSLE Mathematics AI Generated Generated by DeepSeek V4 Flash Sample 03 Updated 2026-08-17

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Questions

Primary 6 PSLE Mathematics Quiz - Addition Subtraction

Name: ______________________________ Class: ______________________________ Date: ______________________________ Score: _____________ / 50

Duration: 45 minutes Total Marks: 50

Instructions:

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

Section A: Multiple-Choice Questions (10 × 2 marks = 20 marks)

Circle the correct answer for each question.

1. What is the sum of 48 295 and 31 708?

A) 79 903
B) 80 003
C) 80 903
D) 81 003

______________________________

2. A factory produced 125 600 toy cars in January and 98 750 toy cars in February. How many more toy cars were produced in January than in February?

A) 26 850
B) 27 150
C) 26 950
D) 27 850

______________________________

3. What is the value of 1 000 000 – 456 789?

A) 543 211
B) 543 221
C) 544 211
D) 553 211

______________________________

4. A number is 234 567 more than 567 890. What is the number?

A) 333 323
B) 802 457
C) 792 457
D) 802 467

______________________________

5. Which of the following is equal to 500 000 + 80 000 + 4000 + 30 + 5?

A) 584 035
B) 580 435
C) 584 350
D) 584 305

______________________________

6. The difference between two numbers is 125 000. The smaller number is 375 000. What is the larger number?

A) 250 000
B) 500 000
C) 400 000
D) 625 000

______________________________

7. 345 678 + 234 567 = ?

A) 579 245
B) 580 245
C) 579 345
D) 580 345

______________________________

8. A shop sold 234 560 packets of noodles in April and 198 765 packets in May. What was the total number of packets sold in the two months?

A) 432 325
B) 433 325
C) 433 225
D) 432 225

______________________________

9. What must be added to 456 789 to get 1 000 000?

A) 543 211
B) 543 221
C) 544 211
D) 553 211

______________________________

10. 800 000 – 234 567 = ?

A) 565 433
B) 566 433
C) 565 533
D) 566 533

______________________________

Section B: Short-Answer Questions (5 × 3 marks = 15 marks)

Show your working clearly. Write your answer in the box provided.

11. A library has 345 678 fiction books and 234 567 non-fiction books. How many books does the library have in total?

______________________________

12. A company earned $1 250 000 in the first half of the year and$ 1 875 000 in the second half. How much more did the company earn in the second half than in the first half?

______________________________

13. A school has 1 560 students. 789 of them are girls. How many are boys?

______________________________

14. A farmer harvested 234 560 kg of rice from Field A and 189 765 kg from Field B. What is the total harvest from both fields?

______________________________

15. The sum of two numbers is 987 654. One of the numbers is 456 789. What is the other number?

______________________________

Section C: Problem-Solving Questions (3 × 5 marks = 15 marks)

Show your working and reasoning clearly. Write your final answer in the box.

16. A company had 2 500 000 dollars in its bank account. It spent $1 250 000 on new equipment and$ 875 000 on salaries. How much money is left in the account?

______________________________

17. A bookstore sold 345 678 books in January, 234 567 books in February, and 198 765 books in March. What was the total number of books sold in the three months?

______________________________

18. A factory produced 1 250 000 toy cars in 2023. In 2024, it produced 1 875 000 toy cars. How many more toy cars were produced in 2024 than in 2023? If the factory plans to produce 2 500 000 toy cars in 2025, what is the total number of toy cars produced over the three years?

______________________________

19. A farmer has 3 500 000 eggs. He sells 1 250 000 eggs to a supermarket and 875 000 eggs to a restaurant. How many eggs does he have left?

______________________________

20. A school collected $2 500 000 for a charity fund. The school spent$ 1 250 000 on new computers and $875 000 on library books. How much money is left for other charity projects?

______________________________

End of Quiz

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Answers

Answer Key - Primary 6 PSLE Mathematics Quiz - Addition Subtraction

Total Marks: 50

Section A: Multiple-Choice Questions (10 × 2 marks = 20 marks)

1. B) 80 003

Working: 48 295 + 31 708 = 80 003
Explanation: Add the numbers column by column, starting from the ones place. 5 + 8 = 13, write 3, carry 1. 9 + 0 + 1 = 10, write 0, carry 1. 2 + 7 + 1 = 10, write 0, carry 1. 8 + 1 + 1 = 10, write 0, carry 1. 4 + 3 + 1 = 8. So the answer is 80 003.
Marking: 2 marks for correct answer. 1 mark if working shows correct method but arithmetic error.

2. A) 26 850

Working: 125 600 – 98 750 = 26 850
Explanation: "How many more" means subtraction. 125 600 – 98 750 = 26 850.
Marking: 2 marks for correct answer. 1 mark for correct method.

3. A) 543 211

Working: 1 000 000 – 456 789 = 543 211
Explanation: Use the standard subtraction algorithm. Borrow from the next column when needed.
Marking: 2 marks for correct answer.

4. B) 802 457

Working: 567 890 + 234 567 = 802 457
Explanation: "More than" means addition. 567 890 + 234 567 = 802 457.
Marking: 2 marks for correct answer.

5. A) 584 035

Working: 500 000 + 80 000 = 580 000; 580 000 + 4000 = 584 000; 584 000 + 30 = 584 030; 584 030 + 5 = 584 035
Explanation: Add the place values step by step.
Marking: 2 marks for correct answer.

6. B) 500 000

Working: 375 000 + 125 000 = 500 000
Explanation: The larger number is the smaller number plus the difference. 375 000 + 125 000 = 500 000.
Marking: 2 marks for correct answer.

7. B) 580 245

Working: 345 678 + 234 567 = 580 245
Explanation: Add column by column with carrying.
Marking: 2 marks for correct answer.

8. B) 433 325

Working: 234 560 + 198 765 = 433 325
Explanation: Add the two numbers.
Marking: 2 marks for correct answer.

9. A) 543 211

Working: 1 000 000 – 456 789 = 543 211
Explanation: "What must be added" means find the difference. 1 000 000 – 456 789 = 543 211.
Marking: 2 marks for correct answer.

10. A) 565 433

Working: 800 000 – 234 567 = 565 433
Explanation: Subtract using the standard algorithm.
Marking: 2 marks for correct answer.

Section B: Short-Answer Questions (5 × 3 marks = 15 marks)

11. Answer: 580 245 books

Working: 345 678 + 234 567 = 580 245
Explanation: "In total" means addition. Add the number of fiction and non-fiction books.
Marking: 3 marks for correct answer with working. 2 marks for correct method but arithmetic error. 1 mark for some correct working.

12. Answer: $625 000

Working: $1 875 000 –$ 1 250 000 = $625 000
Explanation: "How much more" means subtraction. Subtract the first half earnings from the second half earnings.
Marking: 3 marks for correct answer with working. 2 marks for correct method but arithmetic error.

13. Answer: 771 boys

Working: 1 560 – 789 = 771
Explanation: Total students minus girls equals boys. 1 560 – 789 = 771.
Marking: 3 marks for correct answer with working. 2 marks for correct method but arithmetic error.

14. Answer: 424 325 kg

Working: 234 560 + 189 765 = 424 325
Explanation: "Total harvest" means addition. Add the harvest from both fields.
Marking: 3 marks for correct answer with working. 2 marks for correct method but arithmetic error.

15. Answer: 530 865

Working: 987 654 – 456 789 = 530 865
Explanation: To find the other number, subtract the known number from the sum. 987 654 – 456 789 = 530 865.
Marking: 3 marks for correct answer with working. 2 marks for correct method but arithmetic error.

Section C: Problem-Solving Questions (3 × 5 marks = 15 marks)

16. Answer: $375 000

Working:
- Total spent: $1 250 000 +$ 875 000 = $2 125 000
- Money left: $2 500 000 –$ 2 125 000 = $375 000
Explanation: First, find the total amount spent by adding the two expenses. Then, subtract the total spent from the initial amount to find the money left.
Marking: 5 marks for correct answer with clear working. 3 marks for correct method but arithmetic error. 2 marks for partial working.

17. Answer: 779 010 books

Working:
- January + February: 345 678 + 234 567 = 580 245
- Total: 580 245 + 198 765 = 779 010
Explanation: Add the sales from all three months. First add January and February, then add March to the result.
Marking: 5 marks for correct answer with clear working. 3 marks for correct method but arithmetic error. 2 marks for partial working.

18. Answer: 625 000 more toy cars in 2024; 5 625 000 toy cars over three years

Working:
- More in 2024: 1 875 000 – 1 250 000 = 625 000
- Total over three years: 1 250 000 + 1 875 000 + 2 500 000 = 5 625 000
Explanation: For the first part, subtract 2023 production from 2024 production. For the second part, add the production of all three years.
Marking: 5 marks for both correct answers with clear working. 3 marks for one correct answer with working. 2 marks for partial working.

19. Answer: 1 375 000 eggs

Working:
- Total sold: 1 250 000 + 875 000 = 2 125 000
- Eggs left: 3 500 000 – 2 125 000 = 1 375 000
Explanation: First, find the total number of eggs sold. Then, subtract the total sold from the initial number of eggs.
Marking: 5 marks for correct answer with clear working. 3 marks for correct method but arithmetic error. 2 marks for partial working.

20. Answer: $375 000

Working:
- Total spent: $1 250 000 +$ 875 000 = $2 125 000
- Money left: $2 500 000 –$ 2 125 000 = $375 000
Explanation: First, find the total amount spent on computers and books. Then, subtract the total spent from the total collected to find the money left for other projects.
Marking: 5 marks for correct answer with clear working. 3 marks for correct method but arithmetic error. 2 marks for partial working.

Common Mistakes to Note:

Students often forget to carry over when adding large numbers.
When subtracting, students may subtract the smaller digit from the larger digit without borrowing when needed.
In multi-step problems, students may forget to complete all steps.
Remind students to check their answers by doing the inverse operation (e.g., check subtraction with addition).