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Primary 3 Mathematics Addition Subtraction Quiz

Free P3 Maths Addition Subtraction quiz, Exam version, with questions, answers, and syllabus-aligned practice for Singapore students.

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Primary 3 Mathematics From Real Exams Generated by DeepSeek V4 Flash Sample 04 Updated 2026-08-17

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Questions

Primary 3 Mathematics Quiz - Addition Subtraction

Name: _________________________________________ Class: _________________________________________ Date: _________________________________________ Score: ________ / 40 Duration: 40 minutes Total Marks: 40

Instructions:

Answer all questions.
Show your working clearly where needed.
You may do rough working on the side of the page.
Calculators are not allowed.

Section A: Multiple-Choice Questions (5 questions × 2 marks = 10 marks)

Circle the correct answer for each question.

What is the sum of 3456 and 1234? A. 4680 B. 4690 C. 4681 D. 4691
What is 5000 - 2345? A. 2655 B. 2665 C. 2755 D. 3765
Which number is 1000 more than 4567? A. 4667 B. 5567 C. 4577 D. 4568
6785 + 215 = ? A. 6900 B. 7000 C. 6990 D. 6890
What is the difference between 8000 and 3250? A. 4750 B. 5750 C. 4850 D. 5250

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

Write your answer in the blank provided. Show your working in the space below the question if needed.

Find the value of 2345 + 6789. Answer: ________
Subtract 4567 from 9000. Answer: ________
What number must be added to 3456 to get 7000? Answer: ________
What is the missing number? 8765 - ________ = 4321 Answer: ________
5678 + 4322 = ________ Answer: ________
9000 - 1234 = ________ Answer: ________
A shop had 4567 apples. It sold 2345 apples. How many apples are left? Answer: ________
What is 100 less than 4567? Answer: ________
Find the sum of 1234, 2345, and 3456. Answer: ________
6789 - 3456 = ________ Answer: ________

Section C: Problem-Solving Questions (5 questions × 2 marks = 10 marks)

Show your working clearly. Write your final answer in the blank provided.

A baker made 3456 cookies on Monday and 2345 cookies on Tuesday. How many cookies did he make altogether? Answer: ________
A farmer had 5678 eggs. He sold 3456 eggs. How many eggs does he have left? Answer: ________
A school has 2345 boys and 3210 girls. How many more girls than boys are there? Answer: ________
A shop had 6789 toys. It sold 2345 toys on Monday and 1234 toys on Tuesday. How many toys are left? Answer: ________
A book has 4567 pages. A child read 1234 pages on the first day and 2345 pages on the second day. How many pages does the child have left to read? Answer: ________

End of Quiz

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Answers

Primary 3 Mathematics Quiz - Addition Subtraction - Answer Key

Total Marks: 40

Section A: Multiple-Choice Questions (5 questions × 2 marks = 10 marks)

Answer: B. 4690
- Working:
```
3456
+ 1234
------
4690
```
- Explanation: Align the numbers by place value (ones, tens, hundreds, thousands). Add each column: 6 + 4 = 10 (write 0, carry 1 to tens), 5 + 3 + 1 = 9, 4 + 2 = 6, 3 + 1 = 4. The sum is 4690.
- Common Mistake: Forgetting to carry over the 1 from the ones column.
Answer: A. 2655
- Working:
```
5000
- 2345
------
2655
```
- Explanation: Align the numbers. Since 0 is less than 5, we need to regroup. 5000 becomes 4 thousands, 9 hundreds, 9 tens, and 10 ones. Then subtract: 10 - 5 = 5, 9 - 4 = 5, 9 - 3 = 6, 4 - 2 = 2. The answer is 2655.
- Common Mistake: Subtracting 5000 - 2345 as 5000 - 2000 = 3000, then 3000 - 300 = 2700, then 2700 - 40 = 2660, then 2660 - 5 = 2655. This is a valid mental method but can be error-prone.
Answer: B. 5567
- Working: 4567 + 1000 = 5567
- Explanation: Adding 1000 increases the thousands digit by 1. 4 thousands become 5 thousands.
- Common Mistake: Adding 1000 to the hundreds place (4567 + 1000 = 4667).
Answer: B. 7000
- Working:
```
6785
+  215
------
7000
```
- Explanation: Align the numbers. Add each column: 5 + 5 = 10 (write 0, carry 1), 8 + 1 + 1 = 10 (write 0, carry 1), 7 + 2 + 1 = 10 (write 0, carry 1), 6 + 1 = 7. The sum is 7000.
- Common Mistake: Forgetting to carry over multiple times.
Answer: A. 4750
- Working: 8000 - 3250 = 4750
- Explanation: "Difference" means subtraction. Align the numbers. 8000 - 3250 = 4750.
- Common Mistake: Subtracting 3250 from 8000 as 8000 - 3000 = 5000, then 5000 - 250 = 4750. This is a valid method.

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

Answer: 9134
- Working:
```
2345
+ 6789
------
9134
```
- Explanation: Align the numbers. Add each column: 5 + 9 = 14 (write 4, carry 1), 4 + 8 + 1 = 13 (write 3, carry 1), 3 + 7 + 1 = 11 (write 1, carry 1), 2 + 6 + 1 = 9. The sum is 9134.
Answer: 4433
- Working:
```
9000
- 4567
------
4433
```
- Explanation: "Subtract 4567 from 9000" means 9000 - 4567. Align the numbers. Regroup: 9000 becomes 8 thousands, 9 hundreds, 9 tens, 10 ones. Subtract: 10 - 7 = 3, 9 - 6 = 3, 9 - 5 = 4, 8 - 4 = 4. The answer is 4433.
Answer: 3544
- Working: 7000 - 3456 = 3544
- Explanation: To find the number to be added, subtract the starting number from the target number. 7000 - 3456 = 3544.
- Check: 3456 + 3544 = 7000.
Answer: 4444
- Working: 8765 - 4321 = 4444
- Explanation: To find the missing number, subtract the result from the starting number. 8765 - 4321 = 4444.
- Check: 8765 - 4444 = 4321.
Answer: 10000
- Working:
```
5678
+ 4322
------
10000
```
- Explanation: Align the numbers. Add each column: 8 + 2 = 10 (write 0, carry 1), 7 + 2 + 1 = 10 (write 0, carry 1), 6 + 3 + 1 = 10 (write 0, carry 1), 5 + 4 + 1 = 10 (write 0, carry 1). The sum is 10000.
Answer: 7766
- Working:
```
9000
- 1234
------
7766
```
- Explanation: Align the numbers. Regroup: 9000 becomes 8 thousands, 9 hundreds, 9 tens, 10 ones. Subtract: 10 - 4 = 6, 9 - 3 = 6, 9 - 2 = 7, 8 - 1 = 7. The answer is 7766.
Answer: 2222
- Working: 4567 - 2345 = 2222
- Explanation: "Sold" means subtraction. The shop had 4567 apples and sold 2345. The number of apples left is 4567 - 2345 = 2222.
Answer: 4467
- Working: 4567 - 100 = 4467
- Explanation: "100 less" means subtract 100. 4567 - 100 = 4467.
Answer: 7035
- Working:
```
1234
2345
+ 3456
------
7035
```
- Explanation: "Sum" means addition. Align the numbers. Add each column: 4 + 5 + 6 = 15 (write 5, carry 1), 3 + 4 + 5 + 1 = 13 (write 3, carry 1), 2 + 3 + 4 + 1 = 10 (write 0, carry 1), 1 + 2 + 3 + 1 = 7. The sum is 7035.
Answer: 3333
- Working:
```
6789
- 3456
------
3333
```
- Explanation: Align the numbers. Subtract each column: 9 - 6 = 3, 8 - 5 = 3, 7 - 4 = 3, 6 - 3 = 3. The answer is 3333.

Section C: Problem-Solving Questions (5 questions × 2 marks = 10 marks)

Answer: 5801 cookies
- Working:
```
3456
+ 2345
------
5801
```
- Explanation: "Altogether" means addition. The baker made 3456 cookies on Monday and 2345 on Tuesday. The total number of cookies is 3456 + 2345 = 5801.
Answer: 2222 eggs
- Working: 5678 - 3456 = 2222
- Explanation: "Sold" means subtraction. The farmer had 5678 eggs and sold 3456. The number of eggs left is 5678 - 3456 = 2222.
Answer: 865 more girls
- Working: 3210 - 2345 = 865
- Explanation: "How many more" means subtraction (comparison). There are 3210 girls and 2345 boys. The difference is 3210 - 2345 = 865.
Answer: 3210 toys
- Working: Step 1: 2345 + 1234 = 3579 (total toys sold) Step 2: 6789 - 3579 = 3210 (toys left)
- Explanation: First, find the total number of toys sold: 2345 + 1234 = 3579. Then, subtract the total sold from the starting number: 6789 - 3579 = 3210.
Answer: 988 pages
- Working: Step 1: 1234 + 2345 = 3579 (total pages read) Step 2: 4567 - 3579 = 988 (pages left to read)
- Explanation: First, find the total number of pages read: 1234 + 2345 = 3579. Then, subtract the total pages read from the total number of pages: 4567 - 3579 = 988.

End of Answer Key