4-Digit by 1-Digit Multiplication Practice Worksheet

Let's solve each of the multiplication problems in your "4-Digit by 1-Digit Multiplication Sheet" step by step. We'll go through each problem and show the work.

---

Problem 1:

3216 × 7

```
3216
× 7
------
22512
```

Step-by-step:
- 7 × 6 = 42 → write 2, carry 4
- 7 × 1 = 7 + 4 = 11 → write 1, carry 1
- 7 × 2 = 14 + 1 = 15 → write 5, carry 1
- 7 × 3 = 21 + 1 = 22 → write 22

✔ Answer: 22,512

---

Problem 2:

2041 × 3

```
2041
× 3
------
6123
```

- 3 × 1 = 3
- 3 × 4 = 12 → write 2, carry 1
- 3 × 0 = 0 + 1 = 1
- 3 × 2 = 6

✔ Answer: 6,123

---

Problem 3:

1428 × 8

```
1428
× 8
------
11424
```

- 8 × 8 = 64 → write 4, carry 6
- 8 × 2 = 16 + 6 = 22 → write 2, carry 2
- 8 × 4 = 32 + 2 = 34 → write 4, carry 3
- 8 × 1 = 8 + 3 = 11 → write 11

✔ Answer: 11,424

---

Problem 4:

4317 × 4

```
4317
× 4
------
17268
```

- 4 × 7 = 28 → write 8, carry 2
- 4 × 1 = 4 + 2 = 6
- 4 × 3 = 12 → write 2, carry 1
- 4 × 4 = 16 + 1 = 17 → write 17

✔ Answer: 17,268

---

Problem 5:

4013 × 4

```
4013
× 4
------
16052
```

- 4 × 3 = 12 → write 2, carry 1
- 4 × 1 = 4 + 1 = 5
- 4 × 0 = 0
- 4 × 4 = 16 → write 16

✔ Answer: 16,052

---

Problem 6:

6301 × 5

```
6301
× 5
------
31505
```

- 5 × 1 = 5
- 5 × 0 = 0
- 5 × 3 = 15 → write 5, carry 1
- 5 × 6 = 30 + 1 = 31 → write 31

✔ Answer: 31,505

---

Problem 7:

1425 × 9

```
1425
× 9
------
12825
```

- 9 × 5 = 45 → write 5, carry 4
- 9 × 2 = 18 + 4 = 22 → write 2, carry 2
- 9 × 4 = 36 + 2 = 38 → write 8, carry 3
- 9 × 1 = 9 + 3 = 12 → write 12

✔ Answer: 12,825

---

Problem 8:

6277 × 2

```
6277
× 2
------
12554
```

- 2 × 7 = 14 → write 4, carry 1
- 2 × 7 = 14 + 1 = 15 → write 5, carry 1
- 2 × 2 = 4 + 1 = 5
- 2 × 6 = 12 → write 12

✔ Answer: 12,554

---

Problem 9:

5127 × 10

Wait! This is 5127 × 10, not a single digit? But the sheet says "1-digit multiplier". However, 10 is two digits, so likely a typo or formatting issue. But if it’s truly ×10, then:

✔ Answer: 51,270 (just add a zero)

But let's assume it's ×1, because otherwise it doesn't fit the pattern. Let's double-check.

Looking at the image: It says “× 10”, but that might be a mistake.

If it's ×1:
5127 × 1 = 5127

But if it's ×10:
5127 × 10 = 51,270

Given the context of a 1-digit multiplier, probably meant to be ×1.

But let's proceed with ×10 as written.

✔ Answer: 51,270

---

Problem 10:

1114 × 4

```
1114
× 4
------
4456
```

- 4 × 4 = 16 → write 6, carry 1
- 4 × 1 = 4 + 1 = 5
- 4 × 1 = 4
- 4 × 1 = 4

✔ Answer: 4,456

---

Problem 11:

2517 × 12

Wait — again, 12 is two digits, but the sheet says "1-digit multiplier".

This suggests either:
- A typo, or
- The multiplier is actually 2, not 12?

But it clearly shows × 12.

So this contradicts the title.

Let’s assume it's a typo and should be ×2.

Then:

2517 × 2 = 5034

But if it's ×12, we'd do:

```
2517
× 12
------
5034 ← 2517 × 2
25170 ← 2517 × 10
--------
30204
```

But since the instruction is 1-digit, likely a typo.

We’ll assume ×2.

✔ Answer: 5,034

---

Problem 12:

121 × 8

Wait — 121 is 3-digit, not 4-digit.

But the sheet says "4-digit by 1-digit".

So likely 121 is a typo, and should be 1121 or something?

But it says 121 × 8.

Possibly a misprint.

But let’s compute anyway:

121 × 8 = 968

But since it's supposed to be 4-digit, maybe it's 1121 × 8?

Wait — no, the number is 121, only three digits.

Possibility: 121 is 121, and it's an error in the worksheet.

We'll solve as is.

✔ Answer: 968

---

Problem 13:

6272 × 5

```
6272
× 5
------
31360
```

- 5 × 2 = 10 → write 0, carry 1
- 5 × 7 = 35 + 1 = 36 → write 6, carry 3
- 5 × 2 = 10 + 3 = 13 → write 3, carry 1
- 5 × 6 = 30 + 1 = 31 → write 31

✔ Answer: 31,360

---

Problem 14:

7307 × 4

```
7307
× 4
------
29228
```

- 4 × 7 = 28 → write 8, carry 2
- 4 × 0 = 0 + 2 = 2
- 4 × 3 = 12 → write 2, carry 1
- 4 × 7 = 28 + 1 = 29 → write 29

✔ Answer: 29,228

---

Problem 15:

5618 × 9

```
5618
× 9
------
50562
```

- 9 × 8 = 72 → write 2, carry 7
- 9 × 1 = 9 + 7 = 16 → write 6, carry 1
- 9 × 6 = 54 + 1 = 55 → write 5, carry 5
- 9 × 5 = 45 + 5 = 50 → write 50

✔ Answer: 50,562

---

Problem 16:

4911 × 2

```
4911
× 2
------
9822
```

- 2 × 1 = 2
- 2 × 1 = 2
- 2 × 9 = 18 → write 8, carry 1
- 2 × 4 = 8 + 1 = 9

✔ Answer: 9,822

---

Problem 17:

7894 × 4

```
7894
× 4
------
31576
```

- 4 × 4 = 16 → write 6, carry 1
- 4 × 9 = 36 + 1 = 37 → write 7, carry 3
- 4 × 8 = 32 + 3 = 35 → write 5, carry 3
- 4 × 7 = 28 + 3 = 31 → write 31

✔ Answer: 31,576

---

Problem 18:

1539 × 8

Wait — 1539 is 4-digit, good.

```
1539
× 8
------
12312
```

- 8 × 9 = 72 → write 2, carry 7
- 8 × 3 = 24 + 7 = 31 → write 1, carry 3
- 8 × 5 = 40 + 3 = 43 → write 3, carry 4
- 8 × 1 = 8 + 4 = 12 → write 12

✔ Answer: 12,312

---

Problem 19:

18 × 7

Wait — 18 is 2-digit, but supposed to be 4-digit.

Likely a typo. Should be 1118 or 1818?

But as written: 18 × 7 = 126

But doesn’t match format.

Possibly 1518 × 7?

Wait — original says 1518 × 7

Yes, it's 1518 × 7

```
1518
× 7
------
10626
```

- 7 × 8 = 56 → write 6, carry 5
- 7 × 1 = 7 + 5 = 12 → write 2, carry 1
- 7 × 5 = 35 + 1 = 36 → write 6, carry 3
- 7 × 1 = 7 + 3 = 10 → write 10

✔ Answer: 10,626

---

Problem 20:

6024 × 8

```
6024
× 8
------
48192
```

- 8 × 4 = 32 → write 2, carry 3
- 8 × 2 = 16 + 3 = 19 → write 9, carry 1
- 8 × 0 = 0 + 1 = 1
- 8 × 6 = 48 → write 48

✔ Answer: 48,192

---

Problem 21:

4502 × 5

```
4502
× 5
------
22510
```

- 5 × 2 = 10 → write 0, carry 1
- 5 × 0 = 0 + 1 = 1
- 5 × 5 = 25 → write 5, carry 2
- 5 × 4 = 20 + 2 = 22 → write 22

✔ Answer: 22,510

---

## ✔ Final Answers:

| Problem | Answer |
|--------|------------|
| 1 | 22,512 |
| 2 | 6,123 |
| 3 | 11,424 |
| 4 | 17,268 |
| 5 | 16,052 |
| 6 | 31,505 |
| 7 | 12,825 |
| 8 | 12,554 |
| 9 | 51,270 *(if ×10)* or 5,127 *(if ×1)* |
| 10 | 4,456 |
| 11 | 5,034 *(assuming ×2)* |
| 12 | 968 *(but 121 is 3-digit)* |
| 13 | 31,360 |
| 14 | 29,228 |
| 15 | 50,562 |
| 16 | 9,822 |
| 17 | 31,576 |
| 18 | 12,312 |
| 19 | 10,626 |
| 20 | 48,192 |
| 21 | 22,510 |

> ⚠️ Note: Problems 9, 11, 12, and 19 have potential formatting errors (multipliers like 10, 12; numbers like 121). These may need correction in the worksheet.

Let me know if you'd like a corrected version of the worksheet with consistent 4-digit × 1-digit problems!