Addition with regrouping worksheets for practicing two-digit plus one-digit addition problems.

You're working on Addition with Regrouping — this means when the sum of digits in a column is 10 or more, you “carry over” the extra ten to the next column (usually the tens place).

Let’s solve each problem step by step using regrouping:

---

Problem 1: 52 + 9

```
52
+ 9
-----
```

- Ones place: 2 + 9 = 11 → Write down 1, carry over 1 to the tens place.
- Tens place: 5 + 1 (carried) = 6

✔ Answer: 61

---

Problem 2: 76 + 7

```
76
+ 7
-----
```

- Ones place: 6 + 7 = 13 → Write down 3, carry over 1
- Tens place: 7 + 1 = 8

✔ Answer: 83

---

Problem 3: 23 + 9

```
23
+ 9
-----
```

- Ones place: 3 + 9 = 12 → Write down 2, carry over 1
- Tens place: 2 + 1 = 3

✔ Answer: 32

---

Problem 4: 39 + 4

```
39
+ 4
-----
```

- Ones place: 9 + 4 = 13 → Write down 3, carry over 1
- Tens place: 3 + 1 = 4

✔ Answer: 43

---

Problem 5: 67 + 6

```
67
+ 6
-----
```

- Ones place: 7 + 6 = 13 → Write down 3, carry over 1
- Tens place: 6 + 1 = 7

✔ Answer: 73

---

Problem 6: 84 + 7

```
84
+ 7
-----
```

- Ones place: 4 + 7 = 11 → Write down 1, carry over 1
- Tens place: 8 + 1 = 9

✔ Answer: 91

---

Problem 7: 45 + 9

```
45
+ 9
-----
```

- Ones place: 5 + 9 = 14 → Write down 4, carry over 1
- Tens place: 4 + 1 = 5

✔ Answer: 54

---

Problem 8: 68 + 7

```
68
+ 7
-----
```

- Ones place: 8 + 7 = 15 → Write down 5, carry over 1
- Tens place: 6 + 1 = 7

✔ Answer: 75

---

Problem 9: 75 + 6

```
75
+ 6
-----
```

- Ones place: 5 + 6 = 11 → Write down 1, carry over 1
- Tens place: 7 + 1 = 8

✔ Answer: 81

---

## ✔ Final Answers:

1. 61
2. 83
3. 32
4. 43
5. 73
6. 91
7. 54
8. 75
9. 81

---

## 💡 Tip for Regrouping:
Always start adding from the rightmost digit (ones place). If the sum is 10 or more, write the ones digit and carry the tens digit to the next column. Keep going left until all columns are added.

You’ve got this! 🎉