Addition with regrouping worksheet for practicing two-digit addition problems.

Let's solve the addition problems in the image step by step. The worksheet contains several two-digit addition problems, some of which involve regrouping (carrying over). I'll go through each one and provide the correct answers.

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Row 1:

1. 35 + 26
- 5 + 6 = 11 → write down 1, carry over 1
- 3 + 2 + 1 = 6
→ 61

2. 43 + 29
- 3 + 9 = 12 → write down 2, carry over 1
- 4 + 2 + 1 = 7
→ 72

3. 26 + 47
- 6 + 7 = 13 → write down 3, carry over 1
- 2 + 4 + 1 = 7
→ 73

4. 59 + 24
- 9 + 4 = 13 → write down 3, carry over 1
- 5 + 2 + 1 = 8
→ 83

5. 37 + 38
- 7 + 8 = 15 → write down 5, carry over 1
- 3 + 3 + 1 = 7
→ 75

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Row 2:

6. 57 + 36
- 7 + 6 = 13 → write down 3, carry over 1
- 5 + 3 + 1 = 9
→ 93

7. 79 + 25
- 9 + 5 = 14 → write down 4, carry over 1
- 7 + 2 + 1 = 10
→ 104

8. 66 + 18
- 6 + 8 = 14 → write down 4, carry over 1
- 6 + 1 + 1 = 8
→ 84

9. 82 + 19
- 2 + 9 = 11 → write down 1, carry over 1
- 8 + 1 + 1 = 10
→ 101

10. 35 + 87
- 5 + 7 = 12 → write down 2, carry over 1
- 3 + 8 + 1 = 12
→ 122

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Row 3:

11. 49 + 98
- 9 + 8 = 17 → write down 7, carry over 1
- 4 + 9 + 1 = 14
→ 147

12. 17 + 56
- 7 + 6 = 13 → write down 3, carry over 1
- 1 + 5 + 1 = 7
→ 73

13. 35 + 55
- 5 + 5 = 10 → write down 0, carry over 1
- 3 + 5 + 1 = 9
→ 90

14. 87 + 10
- 7 + 0 = 7
- 8 + 1 = 9
→ 97

15. 53 + 46
- 3 + 6 = 9
- 5 + 4 = 9
→ 99

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Row 4:

16. 50 + 45
- 0 + 5 = 5
- 5 + 4 = 9
→ 95

17. 36 + 17
- 6 + 7 = 13 → write down 3, carry over 1
- 3 + 1 + 1 = 5
→ 53

18. 25 + 25
- 5 + 5 = 10 → write down 0, carry over 1
- 2 + 2 + 1 = 5
→ 50

19. 62 + 22
- 2 + 2 = 4
- 6 + 2 = 8
→ 84

20. 37 + 28
- 7 + 8 = 15 → write down 5, carry over 1
- 3 + 2 + 1 = 6
→ 65

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Row 5:

21. 24 + 19
- 4 + 9 = 13 → write down 3, carry over 1
- 2 + 1 + 1 = 4
→ 43

22. 63 + 28
- 3 + 8 = 11 → write down 1, carry over 1
- 6 + 2 + 1 = 9
→ 91

23. 48 + 15
- 8 + 5 = 13 → write down 3, carry over 1
- 4 + 1 + 1 = 6
→ 63

24. 75 + 26
- 5 + 6 = 11 → write down 1, carry over 1
- 7 + 2 + 1 = 10
→ 101

25. 56 + 21
- 6 + 1 = 7
- 5 + 2 = 7
→ 77

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✔ Final Answers:

Here are all the solutions:

```
35 + 26 = 61
43 + 29 = 72
26 + 47 = 73
59 + 24 = 83
37 + 38 = 75

57 + 36 = 93
79 + 25 = 104
66 + 18 = 84
82 + 19 = 101
35 + 87 = 122

49 + 98 = 147
17 + 56 = 73
35 + 55 = 90
87 + 10 = 97
53 + 46 = 99

50 + 45 = 95
36 + 17 = 53
25 + 25 = 50
62 + 22 = 84
37 + 28 = 65

24 + 19 = 43
63 + 28 = 91
48 + 15 = 63
75 + 26 = 101
56 + 21 = 77
```

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🔍 Explanation:

- Regrouping (Carrying): When the sum of digits in a column is 10 or more, we write down the ones digit and carry over the tens digit to the next column.
- For example: In 35 + 26, 5 + 6 = 11 → write 1, carry 1; then 3 + 2 + 1 = 6 → result is 61.
- Always add from right to left.
- Some problems result in three-digit numbers (like 104, 122, 147), so be careful with carrying.

Let me know if you'd like this formatted as a printable answer key!