Addition With Regrouping Worksheets with Answer Key - Free Printable

Let's solve each addition problem on the "Adding with Regrouping Sheet" step by step. We'll add the numbers and show how regrouping (carrying over) is used when the sum of digits in a column exceeds 9.

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🔢 Step-by-Step Solutions:

#### 1. $ 53 + 29 $
- Units: $3 + 9 = 12$ → write 2, carry 1
- Tens: $5 + 2 + 1 = 8$
- ✔ Answer: 82

#### 2. $ 27 + 46 $
- Units: $7 + 6 = 13$ → write 3, carry 1
- Tens: $2 + 4 + 1 = 7$
- ✔ Answer: 73

#### 3. $ 17 + 43 $
- Units: $7 + 3 = 10$ → write 0, carry 1
- Tens: $1 + 4 + 1 = 6$
- ✔ Answer: 60

#### 4. $ 54 + 27 $
- Units: $4 + 7 = 11$ → write 1, carry 1
- Tens: $5 + 2 + 1 = 8$
- ✔ Answer: 81

#### 5. $ 24 + 38 $
- Units: $4 + 8 = 12$ → write 2, carry 1
- Tens: $2 + 3 + 1 = 6$
- ✔ Answer: 62

#### 6. $ 77 + 28 $
- Units: $7 + 8 = 15$ → write 5, carry 1
- Tens: $7 + 2 + 1 = 10$
- ✔ Answer: 105

#### 7. $ 59 + 64 $
- Units: $9 + 4 = 13$ → write 3, carry 1
- Tens: $5 + 6 + 1 = 12$
- ✔ Answer: 123

#### 8. $ 87 + 23 $
- Units: $7 + 3 = 10$ → write 0, carry 1
- Tens: $8 + 2 + 1 = 11$
- ✔ Answer: 110

#### 9. $ 14 + 98 $
- Units: $4 + 8 = 12$ → write 2, carry 1
- Tens: $1 + 9 + 1 = 11$
- ✔ Answer: 112

#### 10. $ 76 + 14 $
- Units: $6 + 4 = 10$ → write 0, carry 1
- Tens: $7 + 1 + 1 = 9$
- ✔ Answer: 90

#### 11. $ 57 + 48 $
- Units: $7 + 8 = 15$ → write 5, carry 1
- Tens: $5 + 4 + 1 = 10$
- ✔ Answer: 105

#### 12. $ 18 + 79 $
- Units: $8 + 9 = 17$ → write 7, carry 1
- Tens: $1 + 7 + 1 = 9$
- ✔ Answer: 97

#### 13. $ 43 + 37 $
- Units: $3 + 7 = 10$ → write 0, carry 1
- Tens: $4 + 3 + 1 = 8$
- ✔ Answer: 80

#### 14. $ 94 + 28 $
- Units: $4 + 8 = 12$ → write 2, carry 1
- Tens: $9 + 2 + 1 = 12$
- ✔ Answer: 122

#### 15. $ 67 + 55 $
- Units: $7 + 5 = 12$ → write 2, carry 1
- Tens: $6 + 5 + 1 = 12$
- ✔ Answer: 122

#### 16. $ 81 + 19 $
- Units: $1 + 9 = 10$ → write 0, carry 1
- Tens: $8 + 1 + 1 = 10$
- ✔ Answer: 100

#### 17. $ 53 + 28 $
- Units: $3 + 8 = 11$ → write 1, carry 1
- Tens: $5 + 2 + 1 = 8$
- ✔ Answer: 81

#### 18. $ 75 + 86 $
- Units: $5 + 6 = 11$ → write 1, carry 1
- Tens: $7 + 8 + 1 = 16$
- ✔ Answer: 161

#### 19. $ 55 + 73 $
- Units: $5 + 3 = 8$
- Tens: $5 + 7 = 12$
- ✔ Answer: 128

#### 20. $ 19 + 39 $
- Units: $9 + 9 = 18$ → write 8, carry 1
- Tens: $1 + 3 + 1 = 5$
- ✔ Answer: 58

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✔ Final Answers (in order):

1. 82
2. 73
3. 60
4. 81
5. 62
6. 105
7. 123
8. 110
9. 112
10. 90
11. 105
12. 97
13. 80
14. 122
15. 122
16. 100
17. 81
18. 161
19. 128
20. 58

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📝 Explanation:

This worksheet practices addition with regrouping, where:
- When the sum of digits in the ones place is ≥ 10, we carry over 1 to the tens place.
- Then, we add the tens digits including any carried-over value.
- This method ensures accurate two-digit addition.

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