Printable math worksheet for practicing addition with regrouping, designed for elementary students.

Let’s solve each addition problem step by step. We’re adding two-digit numbers, and some will need regrouping (carrying over when the ones column adds to 10 or more).

We’ll go row by row, left to right.

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Row 1:

1. 58 + 38
Ones: 8 + 8 = 16 → write 6, carry 1
Tens: 5 + 3 + 1 = 9
→ 96

2. 47 + 39
Ones: 7 + 9 = 16 → write 6, carry 1
Tens: 4 + 3 + 1 = 8
→ 86

3. 73 + 18
Ones: 3 + 8 = 11 → write 1, carry 1
Tens: 7 + 1 + 1 = 9
→ 91

4. 56 + 34
Ones: 6 + 4 = 10 → write 0, carry 1
Tens: 5 + 3 + 1 = 9
→ 90

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Row 2:

5. 58 + 34
Ones: 8 + 4 = 12 → write 2, carry 1
Tens: 5 + 3 + 1 = 9
→ 92

6. 28 + 9 → This is 28 + 09
Ones: 8 + 9 = 17 → write 7, carry 1
Tens: 2 + 0 + 1 = 3
→ 37

7. 78 + 16
Ones: 8 + 6 = 14 → write 4, carry 1
Tens: 7 + 1 + 1 = 9
→ 94

8. 43 + 37
Ones: 3 + 7 = 10 → write 0, carry 1
Tens: 4 + 3 + 1 = 8
→ 80

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Row 3:

9. 65 + 29
Ones: 5 + 9 = 14 → write 4, carry 1
Tens: 6 + 2 + 1 = 9
→ 94

10. 36 + 58
Ones: 6 + 8 = 14 → write 4, carry 1
Tens: 3 + 5 + 1 = 9
→ 94

11. 55 + 29
Ones: 5 + 9 = 14 → write 4, carry 1
Tens: 5 + 2 + 1 = 8
→ 84

12. 69 + 15
Ones: 9 + 5 = 14 → write 4, carry 1
Tens: 6 + 1 + 1 = 8
→ 84

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Row 4:

13. 44 + 49
Ones: 4 + 9 = 13 → write 3, carry 1
Tens: 4 + 4 + 1 = 9
→ 93

14. 55 + 39
Ones: 5 + 9 = 14 → write 4, carry 1
Tens: 5 + 3 + 1 = 9
→ 94

15. 69 + 24
Ones: 9 + 4 = 13 → write 3, carry 1
Tens: 6 + 2 + 1 = 9
→ 93

16. 87 + 9 → This is 87 + 09
Ones: 7 + 9 = 16 → write 6, carry 1
Tens: 8 + 0 + 1 = 9
→ 96

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Final Answer:
96, 86, 91, 90,
92, 37, 94, 80,
94, 94, 84, 84,
93, 94, 93, 96