Fourth Grade Math Worksheets - Twisty Noodle - Free Printable

Let's solve each of the addition and subtraction problems on the worksheet step by step, using regrouping (also known as carrying or borrowing) where needed.

---

1. 5029 + 64

```
5029
+ 64
-----
```

Start from the right:
- Ones place: 9 + 4 = 13 → write down 3, carry over 1
- Tens place: 2 + 6 = 8, plus carry-over 1 = 9
- Hundreds place: 0 + 0 = 0
- Thousands place: 5

So:
5029 + 64 = 5093

---

2. 2829 + 72

```
2829
+ 72
-----
```

- Ones: 9 + 2 = 11 → write 1, carry 1
- Tens: 2 + 7 = 9, plus carry 1 = 10 → write 0, carry 1
- Hundreds: 8 + 0 = 8, plus carry 1 = 9
- Thousands: 2

So:
2829 + 72 = 2901

---

3. 1899 + 64

```
1899
+ 64
-----
```

- Ones: 9 + 4 = 13 → write 3, carry 1
- Tens: 9 + 6 = 15, plus carry 1 = 16 → write 6, carry 1
- Hundreds: 8 + 0 = 8, plus carry 1 = 9
- Thousands: 1

So:
1899 + 64 = 1963

---

4. 2877 + 35

```
2877
+ 35
-----
```

- Ones: 7 + 5 = 12 → write 2, carry 1
- Tens: 7 + 3 = 10, plus carry 1 = 11 → write 1, carry 1
- Hundreds: 8 + 0 = 8, plus carry 1 = 9
- Thousands: 2

So:
2877 + 35 = 2912

---

5. 7498 + 69

```
7498
+ 69
-----
```

- Ones: 8 + 9 = 17 → write 7, carry 1
- Tens: 9 + 6 = 15, plus carry 1 = 16 → write 6, carry 1
- Hundreds: 4 + 0 = 4, plus carry 1 = 5
- Thousands: 7

So:
7498 + 69 = 7567

---

6. 9295 - 79

```
9295
- 79
-----
```

We need to borrow for subtraction:

- Ones place: 5 - 9 → can't do it, so borrow from tens.
- Tens digit is 9 → becomes 8, ones become 15
- 15 - 9 = 6
- Tens place: 8 (after borrow) - 7 = 1
- Hundreds: 2
- Thousands: 9

So:
9295 - 79 = 9216

---

7. 6144 - 68

```
6144
- 68
-----
```

- Ones: 4 - 8 → can't do it → borrow from tens
- Tens digit is 4 → becomes 3, ones become 14
- 14 - 8 = 6
- Tens: 3 (after borrow) - 6 → can't do it → borrow from hundreds
- Hundreds digit is 1 → becomes 0, tens become 13
- 13 - 6 = 7
- Hundreds: 0 (after borrow)
- Thousands: 6

So:
6144 - 68 = 6076

---

8. 2651 - 53

```
2651
- 53
-----
```

- Ones: 1 - 3 → borrow from tens
- Tens digit is 5 → becomes 4, ones become 11
- 11 - 3 = 8
- Tens: 4 - 5 → can't do it → borrow from hundreds
- Hundreds digit is 6 → becomes 5, tens become 14
- 14 - 5 = 9
- Hundreds: 5
- Thousands: 2

So:
2651 - 53 = 2598

---

9. 7323 - 48

```
7323
- 48
-----
```

- Ones: 3 - 8 → borrow from tens
- Tens digit is 2 → becomes 1, ones become 13
- 13 - 8 = 5
- Tens: 1 - 4 → can't do it → borrow from hundreds
- Hundreds digit is 3 → becomes 2, tens become 11
- 11 - 4 = 7
- Hundreds: 2
- Thousands: 7

So:
7323 - 48 = 7275

---

✔ Final Answers:

| Problem | Answer |
|----------------|--------|
| 5029 + 64 | 5093 |
| 2829 + 72 | 2901 |
| 1899 + 64 | 1963 |
| 2877 + 35 | 2912 |
| 7498 + 69 | 7567 |
| 9295 - 79 | 9216 |
| 6144 - 68 | 6076 |
| 2651 - 53 | 2598 |
| 7323 - 48 | 7275 |

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Let me know if you'd like this in a printable format or with steps shown vertically!