4 Digit Addition With Regrouping - Carrying - 9 Worksheets / FREE ... - Free Printable

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Show Answer Key & Explanations Step-by-step solution for: 4 Digit Addition With Regrouping - Carrying - 9 Worksheets / FREE ...

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Let's solve each of the addition problems in the image step by step.

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Problem 1:

```
9579
+ 8765
-------
```

Step-by-step:

- Units: 9 + 5 = 14 → write down 4, carry over 1
- Tens: 7 + 6 = 13, plus carry-over 1 = 14 → write down 4, carry over 1
- Hundreds: 5 + 7 = 12, plus carry-over 1 = 13 → write down 3, carry over 1
- Thousands: 9 + 8 = 17, plus carry-over 1 = 18

Result: `18344`

---

Problem 2:

```
4321
+ 9999
-------
```

- Units: 1 + 9 = 10 → write down 0, carry over 1
- Tens: 2 + 9 = 11, plus carry-over 1 = 12 → write down 2, carry over 1
- Hundreds: 3 + 9 = 12, plus carry-over 1 = 13 → write down 3, carry over 1
- Thousands: 4 + 9 = 13, plus carry-over 1 = 14

Result: `14320`

---

Problem 3:

```
9795
+ 8963
-------
```

- Units: 5 + 3 = 8
- Tens: 9 + 6 = 15 → write down 5, carry over 1
- Hundreds: 7 + 9 = 16, plus carry-over 1 = 17 → write down 7, carry over 1
- Thousands: 9 + 8 = 17, plus carry-over 1 = 18

Result: `18758`

---

Problem 4:

```
9699
+ 5978
-------
```

- Units: 9 + 8 = 17 → write down 7, carry over 1
- Tens: 9 + 7 = 16, plus carry-over 1 = 17 → write down 7, carry over 1
- Hundreds: 6 + 9 = 15, plus carry-over 1 = 16 → write down 6, carry over 1
- Thousands: 9 + 5 = 14, plus carry-over 1 = 15

Result: `15677`

---

Problem 5:

```
6929
+ 9897
-------
```

- Units: 9 + 7 = 16 → write down 6, carry over 1
- Tens: 2 + 9 = 11, plus carry-over 1 = 12 → write down 2, carry over 1
- Hundreds: 9 + 8 = 17, plus carry-over 1 = 18 → write down 8, carry over 1
- Thousands: 6 + 9 = 15, plus carry-over 1 = 16

Result: `16826`

---

Problem 6:

```
3994
+ 9329
-------
```

- Units: 4 + 9 = 13 → write down 3, carry over 1
- Tens: 9 + 2 = 11, plus carry-over 1 = 12 → write down 2, carry over 1
- Hundreds: 9 + 3 = 12, plus carry-over 1 = 13 → write down 3, carry over 1
- Thousands: 3 + 9 = 12, plus carry-over 1 = 13

Result: `13323`

---

Problem 7:

```
9795
+ 6939
-------
```

- Units: 5 + 9 = 14 → write down 4, carry over 1
- Tens: 9 + 3 = 12, plus carry-over 1 = 13 → write down 3, carry over 1
- Hundreds: 7 + 9 = 16, plus carry-over 1 = 17 → write down 7, carry over 1
- Thousands: 9 + 6 = 15, plus carry-over 1 = 16

Result: `16734`

---

Problem 8:

```
5969
+ 9584
-------
```

- Units: 9 + 4 = 13 → write down 3, carry over 1
- Tens: 6 + 8 = 14, plus carry-over 1 = 15 → write down 5, carry over 1
- Hundreds: 9 + 5 = 14, plus carry-over 1 = 15 → write down 5, carry over 1
- Thousands: 5 + 9 = 14, plus carry-over 1 = 15

Result: `15553`

---

Problem 9:

```
4929
+ 9591
-------
```

- Units: 9 + 1 = 10 → write down 0, carry over 1
- Tens: 2 + 9 = 11, plus carry-over 1 = 12 → write down 2, carry over 1
- Hundreds: 9 + 5 = 14, plus carry-over 1 = 15 → write down 5, carry over 1
- Thousands: 4 + 9 = 13, plus carry-over 1 = 14

Result: `14520`

---

Problem 10:

```
6499
+ 2978
-------
```

- Units: 9 + 8 = 17 → write down 7, carry over 1
- Tens: 9 + 7 = 16, plus carry-over 1 = 17 → write down 7, carry over 1
- Hundreds: 4 + 9 = 13, plus carry-over 1 = 14 → write down 4, carry over 1
- Thousands: 6 + 2 = 8, plus carry-over 1 = 9

Result: `9477`

---

Problem 11:

```
9754
+ 5979
-------
```

- Units: 4 + 9 = 13 → write down 3, carry over 1
- Tens: 5 + 7 = 12, plus carry-over 1 = 13 → write down 3, carry over 1
- Hundreds: 7 + 9 = 16, plus carry-over 1 = 17 → write down 7, carry over 1
- Thousands: 9 + 5 = 14, plus carry-over 1 = 15

Result: `15733`

---

Problem 12:

```
6978
+ 9499
-------
```

- Units: 8 + 9 = 17 → write down 7, carry over 1
- Tens: 7 + 9 = 16, plus carry-over 1 = 17 → write down 7, carry over 1
- Hundreds: 9 + 4 = 13, plus carry-over 1 = 14 → write down 4, carry over 1
- Thousands: 6 + 9 = 15, plus carry-over 1 = 16

Result: `16477`

---

Problem 13:

```
4958
+ 9593
-------
```

- Units: 8 + 3 = 11 → write down 1, carry over 1
- Tens: 5 + 9 = 14, plus carry-over 1 = 15 → write down 5, carry over 1
- Hundreds: 9 + 5 = 14, plus carry-over 1 = 15 → write down 5, carry over 1
- Thousands: 4 + 9 = 13, plus carry-over 1 = 14

Result: `14551`

---

Problem 14:

```
9993
+ 5779
-------
```

- Units: 3 + 9 = 12 → write down 2, carry over 1
- Tens: 9 + 7 = 16, plus carry-over 1 = 17 → write down 7, carry over 1
- Hundreds: 9 + 7 = 16, plus carry-over 1 = 17 → write down 7, carry over 1
- Thousands: 9 + 5 = 14, plus carry-over 1 = 15

Result: `15772`

---

Problem 15:

```
9699
+ 3958
-------
```

- Units: 9 + 8 = 17 → write down 7, carry over 1
- Tens: 9 + 5 = 14, plus carry-over 1 = 15 → write down 5, carry over 1
- Hundreds: 6 + 9 = 15, plus carry-over 1 = 16 → write down 6, carry over 1
- Thousands: 9 + 3 = 12, plus carry-over 1 = 13

Result: `13657`

---

✔ Final Answers:

1. 9579 + 8765 = 18344
2. 4321 + 9999 = 14320
3. 9795 + 8963 = 18758
4. 9699 + 5978 = 15677
5. 6929 + 9897 = 16826
6. 3994 + 9329 = 13323
7. 9795 + 6939 = 16734
8. 5969 + 9584 = 15553
9. 4929 + 9591 = 14520
10. 6499 + 2978 = 9477
11. 9754 + 5979 = 15733
12. 6978 + 9499 = 16477
13. 4958 + 9593 = 14551
14. 9993 + 5779 = 15772
15. 9699 + 3958 = 13657

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Parent Tip: Review the logic above to help your child master the concept of addition worksheet regrouping 4 digit.

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