4-Digit by 1-Digit Multiplication Practice Worksheet

Let's solve each of the multiplication problems on the worksheet step by step. The task is to multiply a 4-digit number by a 1-digit number (2, 3, 4, or 5).

---

Problem 1: 3216 × 3

```
3216
× 3
-------
9648
```

Explanation:
3 × 6 = 18 → write 8, carry 1
3 × 1 = 3 + 1 = 4
3 × 2 = 6
3 × 3 = 9
→ Result: 9648

---

Problem 2: 2041 × 2

```
2041
× 2
-------
4082
```

Explanation:
2 × 1 = 2
2 × 4 = 8
2 × 0 = 0
2 × 2 = 4
→ Result: 4082

---

Problem 3: 1428 × 5

```
1428
× 5
-------
7140
```

Explanation:
5 × 8 = 40 → write 0, carry 4
5 × 2 = 10 + 4 = 14 → write 4, carry 1
5 × 4 = 20 + 1 = 21 → write 1, carry 2
5 × 1 = 5 + 2 = 7
→ Result: 7140

---

Problem 4: 4317 × 4

```
4317
× 4
-------
17268
```

Explanation:
4 × 7 = 28 → write 8, carry 2
4 × 1 = 4 + 2 = 6
4 × 3 = 12 → write 2, carry 1
4 × 4 = 16 + 1 = 17
→ Result: 17268

---

Problem 5: 4013 × 2

```
4013
× 2
-------
8026
```

Explanation:
2 × 3 = 6
2 × 1 = 2
2 × 0 = 0
2 × 4 = 8
→ Result: 8026

---

Problem 6: 6301 × 5

```
6301
× 5
-------
31505
```

Explanation:
5 × 1 = 5
5 × 0 = 0
5 × 3 = 15 → write 5, carry 1
5 × 6 = 30 + 1 = 31
→ Result: 31505

---

Problem 7: 1425 × 3

```
1425
× 3
-------
4275
```

Explanation:
3 × 5 = 15 → write 5, carry 1
3 × 2 = 6 + 1 = 7
3 × 4 = 12 → write 2, carry 1
3 × 1 = 3 + 1 = 4
→ Result: 4275

---

Problem 8: 6277 × 2

```
6277
× 2
-------
12554
```

Explanation:
2 × 7 = 14 → write 4, carry 1
2 × 7 = 14 + 1 = 15 → write 5, carry 1
2 × 2 = 4 + 1 = 5
2 × 6 = 12
→ Result: 12554

---

Problem 9: 5217 × 5

```
5217
× 5
-------
26085
```

Explanation:
5 × 7 = 35 → write 5, carry 3
5 × 1 = 5 + 3 = 8
5 × 2 = 10 → write 0, carry 1
5 × 5 = 25 + 1 = 26
→ Result: 26085

---

Problem 10: 1214 × 4

```
1214
× 4
-------
4856
```

Explanation:
4 × 4 = 16 → write 6, carry 1
4 × 1 = 4 + 1 = 5
4 × 2 = 8
4 × 1 = 4
→ Result: 4856

---

Problem 11: 2517 × 3

```
2517
× 3
-------
7551
```

Explanation:
3 × 7 = 21 → write 1, carry 2
3 × 1 = 3 + 2 = 5
3 × 5 = 15 → write 5, carry 1
3 × 2 = 6 + 1 = 7
→ Result: 7551

---

Problem 12: 6271 × 2

```
6271
× 2
-------
12542
```

Explanation:
2 × 1 = 2
2 × 7 = 14 → write 4, carry 1
2 × 2 = 4 + 1 = 5
2 × 6 = 12
→ Result: 12542

---

Problem 13: 7307 × 5

```
7307
× 5
-------
36535
```

Explanation:
5 × 7 = 35 → write 5, carry 3
5 × 0 = 0 + 3 = 3
5 × 3 = 15 → write 5, carry 1
5 × 7 = 35 + 1 = 36
→ Result: 36535

---

Problem 14: 5618 × 3

```
5618
× 3
-------
16854
```

Explanation:
3 × 8 = 24 → write 4, carry 2
3 × 1 = 3 + 2 = 5
3 × 6 = 18 → write 8, carry 1
3 × 5 = 15 + 1 = 16
→ Result: 16854

---

Problem 15: 4911 × 2

```
4911
× 2
-------
9822
```

Explanation:
2 × 1 = 2
2 × 1 = 2
2 × 9 = 18 → write 8, carry 1
2 × 4 = 8 + 1 = 9
→ Result: 9822

---

Problem 16: 7894 × 2

```
7894
× 2
-------
15788
```

Explanation:
2 × 4 = 8
2 × 9 = 18 → write 8, carry 1
2 × 8 = 16 + 1 = 17 → write 7, carry 1
2 × 7 = 14 + 1 = 15
→ Result: 15788

---

Problem 17: 3539 × 4

```
3539
× 4
-------
14156
```

Explanation:
4 × 9 = 36 → write 6, carry 3
4 × 3 = 12 + 3 = 15 → write 5, carry 1
4 × 5 = 20 + 1 = 21 → write 1, carry 2
4 × 3 = 12 + 2 = 14
→ Result: 14156

---

Problem 18: 5267 × 3

```
5267
× 3
-------
15801
```

Explanation:
3 × 7 = 21 → write 1, carry 2
3 × 6 = 18 + 2 = 20 → write 0, carry 2
3 × 2 = 6 + 2 = 8
3 × 5 = 15
→ Result: 15801

---

Problem 19: 6024 × 2

```
6024
× 2
-------
12048
```

Explanation:
2 × 4 = 8
2 × 2 = 4
2 × 0 = 0
2 × 6 = 12
→ Result: 12048

---

Problem 20: 4502 × 5

```
4502
× 5
-------
22510
```

Explanation:
5 × 2 = 10 → write 0, carry 1
5 × 0 = 0 + 1 = 1
5 × 5 = 25 → write 5, carry 2
5 × 4 = 20 + 2 = 22
→ Result: 22510

---

✔ Final Answers:

| Problem | Answer |
|--------|---------|
| 1) | 9648 |
| 2) | 4082 |
| 3) | 7140 |
| 4) | 17268 |
| 5) | 8026 |
| 6) | 31505 |
| 7) | 4275 |
| 8) | 12554 |
| 9) | 26085 |
| 10) | 4856 |
| 11) | 7551 |
| 12) | 12542 |
| 13) | 36535 |
| 14) | 16854 |
| 15) | 9822 |
| 16) | 15788 |
| 17) | 14156 |
| 18) | 15801 |
| 19) | 12048 |
| 20) | 22510 |

✔ All problems solved correctly!

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