Printable two-digit addition worksheet for elementary math practice.

Actually, this worksheet is titled “Two-Digit Addition (A)”, but looking closely at the problems, most of them involve adding a two-digit number to a single-digit number — not two two-digit numbers. For example: `58 + 2`, `51 + 8`, etc.

This is still a valuable exercise for practicing addition with regrouping (carrying) when needed, and reinforcing place value.

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✔ Let’s solve each problem step by step and provide the answers.

We’ll go row by row:

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Row 1:

- 58 + 2 = 60
→ 8 + 2 = 10 → write 0, carry 1 → 5 + 1 = 6 → 60

- 51 + 8 = 59
→ 1 + 8 = 9 → no carry → 59

- 14 + 1 = 15
→ 4 + 1 = 5 → 15

- 56 + 7 = 63
→ 6 + 7 = 13 → write 3, carry 1 → 5 + 1 = 6 → 63

- 89 + 8 = 97
→ 9 + 8 = 17 → write 7, carry 1 → 8 + 1 = 9 → 97

- 96 + 5 = 101
→ 6 + 5 = 11 → write 1, carry 1 → 9 + 1 = 10 → 101

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Row 2:

- 46 + 1 = 47

- 84 + 8 = 92
→ 4 + 8 = 12 → carry 1 → 8 + 1 = 9 → 92

- 48 + 3 = 51
→ 8 + 3 = 11 → carry 1 → 4 + 1 = 5 → 51

- 40 + 5 = 45

- 41 + 1 = 42

- 13 + 7 = 20
→ 3 + 7 = 10 → carry 1 → 1 + 1 = 2 → 20

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Row 3:

- 91 + 4 = 95

- 12 + 9 = 21
→ 2 + 9 = 11 → carry 1 → 1 + 1 = 2 → 21

- 63 + 4 = 67

- 40 + 7 = 47

- 77 + 5 = 82
→ 7 + 5 = 12 → carry 1 → 7 + 1 = 8 → 82

- 36 + 5 = 41
→ 6 + 5 = 11 → carry 1 → 3 + 1 = 4 → 41

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Row 4:

- 64 + 2 = 66

- 12 + 3 = 15

- 39 + 1 = 40
→ 9 + 1 = 10 → carry 1 → 3 + 1 = 4 → 40

- 63 + 7 = 70
→ 3 + 7 = 10 → carry 1 → 6 + 1 = 7 → 70

- 49 + 5 = 54
→ 9 + 5 = 14 → carry 1 → 4 + 1 = 5 → 54

- 48 + 9 = 57
→ 8 + 9 = 17 → carry 1 → 4 + 1 = 5 → 57

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Row 5:

- 14 + 6 = 20
→ 4 + 6 = 10 → carry 1 → 1 + 1 = 2 → 20

- 11 + 7 = 18

- 31 + 9 = 40
→ 1 + 9 = 10 → carry 1 → 3 + 1 = 4 → 40

- 33 + 6 = 39

- 75 + 4 = 79

- 18 + 9 = 27
→ 8 + 9 = 17 → carry 1 → 1 + 1 = 2 → 27

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Row 6:

- 71 + 1 = 72

- 50 + 5 = 55

- 90 + 5 = 95

- 29 + 1 = 30
→ 9 + 1 = 10 → carry 1 → 2 + 1 = 3 → 30

- 28 + 6 = 34
→ 8 + 6 = 14 → carry 1 → 2 + 1 = 3 → 34

- 24 + 2 = 26

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## ✔ Final Answer Key (by row):

Row 1:
60, 59, 15, 63, 97, 101

Row 2:
47, 92, 51, 45, 42, 20

Row 3:
95, 21, 67, 47, 82, 41

Row 4:
66, 15, 40, 70, 54, 57

Row 5:
20, 18, 40, 39, 79, 27

Row 6:
72, 55, 95, 30, 34, 26

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📌 Note: Although labeled “Two-Digit Addition,” most problems are two-digit + one-digit. This is common in early arithmetic practice to build fluency before moving to two-digit + two-digit problems.

Let me know if you’d like these formatted as a completed worksheet or need explanations for specific ones!