Grade 3 Addition Worksheets | Free Printables | Math Worksheets - Free Printable

Let me solve each column addition problem step by step.

1. 79 + 55
- Ones: 9 + 5 = 14, write 4, carry 1
- Tens: 7 + 5 + 1 = 13
- Answer: 134

2. 89 + 73
- Ones: 9 + 3 = 12, write 2, carry 1
- Tens: 8 + 7 + 1 = 16
- Answer: 162

3. 65 + 78
- Ones: 5 + 8 = 13, write 3, carry 1
- Tens: 6 + 7 + 1 = 14
- Answer: 143

4. 90 + 65
- Ones: 0 + 5 = 5
- Tens: 9 + 6 = 15
- Answer: 155

5. 39 + 77
- Ones: 9 + 7 = 16, write 6, carry 1
- Tens: 3 + 7 + 1 = 11
- Answer: 116

6. 54 + 62
- Ones: 4 + 2 = 6
- Tens: 5 + 6 = 11
- Answer: 116

7. 69 + 43
- Ones: 9 + 3 = 12, write 2, carry 1
- Tens: 6 + 4 + 1 = 11
- Answer: 112

8. 71 + 56
- Ones: 1 + 6 = 7
- Tens: 7 + 5 = 12
- Answer: 127

9. 239 + 421
- Ones: 9 + 1 = 10, write 0, carry 1
- Tens: 3 + 2 + 1 = 6
- Hundreds: 2 + 4 = 6
- Answer: 660

10. 710 + 315
- Ones: 0 + 5 = 5
- Tens: 1 + 1 = 2
- Hundreds: 7 + 3 = 10
- Answer: 1025

11. 220 + 325
- Ones: 0 + 5 = 5
- Tens: 2 + 2 = 4
- Hundreds: 2 + 3 = 5
- Answer: 545

12. 622 + 700
- Ones: 2 + 0 = 2
- Tens: 2 + 0 = 2
- Hundreds: 6 + 7 = 13
- Answer: 1322

Let me verify all calculations using code to be sure