Math worksheet for practicing addition of 4-digit and 3-digit numbers without regrouping.

Let's solve each of the addition problems on the worksheet. The task is to add a 4-digit number and a 3-digit number without regrouping, which means we will add digit by digit from right to left, and no carrying over should be needed (i.e., the sum of digits in any column should be less than 10).

---

Problem 1:

7223 + 755

```
7223
+ 755
------
```

Add column by column:

- Units: 3 + 5 = 8
- Tens: 2 + 5 = 7
- Hundreds: 2 + 7 = 9
- Thousands: 7 + 0 = 7

So, 7223 + 755 = 7978

✔ No regrouping needed.

---

Problem 2:

2516 + 152

```
2516
+ 152
------
```

- Units: 6 + 2 = 8
- Tens: 1 + 5 = 6
- Hundreds: 5 + 1 = 6
- Thousands: 2 + 0 = 2

So, 2516 + 152 = 2668

✔ No regrouping.

---

Problem 3:

6241 + 626

```
6241
+ 626
------
```

- Units: 1 + 6 = 7
- Tens: 4 + 2 = 6
- Hundreds: 2 + 6 = 8
- Thousands: 6 + 0 = 6

So, 6241 + 626 = 6867

✔ No regrouping.

---

Problem 4:

7182 + 816

```
7182
+ 816
------
```

- Units: 2 + 6 = 8
- Tens: 8 + 1 = 9
- Hundreds: 1 + 8 = 9
- Thousands: 7 + 0 = 7

So, 7182 + 816 = 7998

✔ No regrouping.

---

Problem 5:

1034 + 962

```
1034
+ 962
------
```

- Units: 4 + 2 = 6
- Tens: 3 + 6 = 9
- Hundreds: 0 + 9 = 9
- Thousands: 1 + 0 = 1

So, 1034 + 962 = 1996

✔ No regrouping.

---

Problem 6:

5106 + 461

```
5106
+ 461
------
```

- Units: 6 + 1 = 7
- Tens: 0 + 6 = 6
- Hundreds: 1 + 4 = 5
- Thousands: 5 + 0 = 5

So, 5106 + 461 = 5567

✔ No regrouping.

---

Problem 7:

1063 + 415

```
1063
+ 415
------
```

- Units: 3 + 5 = 8
- Tens: 6 + 1 = 7
- Hundreds: 0 + 4 = 4
- Thousands: 1 + 0 = 1

So, 1063 + 415 = 1478

✔ No regrouping.

---

Problem 8:

9052 + 543

```
9052
+ 543
------
```

- Units: 2 + 3 = 5
- Tens: 5 + 4 = 9
- Hundreds: 0 + 5 = 5
- Thousands: 9 + 0 = 9

So, 9052 + 543 = 9595

✔ No regrouping.

---

Problem 9:

5251 + 132

```
5251
+ 132
------
```

- Units: 1 + 2 = 3
- Tens: 5 + 3 = 8
- Hundreds: 2 + 1 = 3
- Thousands: 5 + 0 = 5

So, 5251 + 132 = 5383

✔ No regrouping.

---

✔ Final Answers:

| Problem | Answer |
|--------|--------|
| 7223 + 755 | 7978 |
| 2516 + 152 | 2668 |
| 6241 + 626 | 6867 |
| 7182 + 816 | 7998 |
| 1034 + 962 | 1996 |
| 5106 + 461 | 5567 |
| 1063 + 415 | 1478 |
| 9052 + 543 | 9595 |
| 5251 + 132 | 5383 |

All additions were done without regrouping, as required.

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