Multiplying in columns: Grade 3 multiplication worksheet with 12 problems for practice.

The task involves solving multiplication problems using the column method. Below is the step-by-step solution for each problem:

---

Problem 1: \( 64 \times 3 \)

```
64
× 3
-----
192
```

- Multiply \( 4 \times 3 = 12 \). Write down 2 and carry over 1.
- Multiply \( 6 \times 3 = 18 \), then add the carried-over 1: \( 18 + 1 = 19 \).

Answer: \( 192 \)

---

Problem 2: \( 77 \times 9 \)

```
77
× 9
-----
693
```

- Multiply \( 7 \times 9 = 63 \). Write down 3 and carry over 6.
- Multiply \( 7 \times 9 = 63 \), then add the carried-over 6: \( 63 + 6 = 69 \).

Answer: \( 693 \)

---

Problem 3: \( 98 \times 8 \)

```
98
× 8
-----
784
```

- Multiply \( 8 \times 8 = 64 \). Write down 4 and carry over 6.
- Multiply \( 9 \times 8 = 72 \), then add the carried-over 6: \( 72 + 6 = 78 \).

Answer: \( 784 \)

---

Problem 4: \( 65 \times 7 \)

```
65
× 7
-----
455
```

- Multiply \( 5 \times 7 = 35 \). Write down 5 and carry over 3.
- Multiply \( 6 \times 7 = 42 \), then add the carried-over 3: \( 42 + 3 = 45 \).

Answer: \( 455 \)

---

Problem 5: \( 85 \times 8 \)

```
85
× 8
-----
680
```

- Multiply \( 5 \times 8 = 40 \). Write down 0 and carry over 4.
- Multiply \( 8 \times 8 = 64 \), then add the carried-over 4: \( 64 + 4 = 68 \).

Answer: \( 680 \)

---

Problem 6: \( 93 \times 3 \)

```
93
× 3
-----
279
```

- Multiply \( 3 \times 3 = 9 \). Write down 9.
- Multiply \( 9 \times 3 = 27 \).

Answer: \( 279 \)

---

Problem 7: \( 63 \times 5 \)

```
63
× 5
-----
315
```

- Multiply \( 3 \times 5 = 15 \). Write down 5 and carry over 1.
- Multiply \( 6 \times 5 = 30 \), then add the carried-over 1: \( 30 + 1 = 31 \).

Answer: \( 315 \)

---

Problem 8: \( 49 \times 4 \)

```
49
× 4
-----
196
```

- Multiply \( 9 \times 4 = 36 \). Write down 6 and carry over 3.
- Multiply \( 4 \times 4 = 16 \), then add the carried-over 3: \( 16 + 3 = 19 \).

Answer: \( 196 \)

---

Problem 9: \( 67 \times 6 \)

```
67
× 6
-----
402
```

- Multiply \( 7 \times 6 = 42 \). Write down 2 and carry over 4.
- Multiply \( 6 \times 6 = 36 \), then add the carried-over 4: \( 36 + 4 = 40 \).

Answer: \( 402 \)

---

Problem 10: \( 79 \times 4 \)

```
79
× 4
-----
316
```

- Multiply \( 9 \times 4 = 36 \). Write down 6 and carry over 3.
- Multiply \( 7 \times 4 = 28 \), then add the carried-over 3: \( 28 + 3 = 31 \).

Answer: \( 316 \)

---

Problem 11: \( 75 \times 8 \)

```
75
× 8
-----
600
```

- Multiply \( 5 \times 8 = 40 \). Write down 0 and carry over 4.
- Multiply \( 7 \times 8 = 56 \), then add the carried-over 4: \( 56 + 4 = 60 \).

Answer: \( 600 \)

---

Problem 12: \( 45 \times 7 \)

```
45
× 7
-----
315
```

- Multiply \( 5 \times 7 = 35 \). Write down 5 and carry over 3.
- Multiply \( 4 \times 7 = 28 \), then add the carried-over 3: \( 28 + 3 = 31 \).

Answer: \( 315 \)

---

Final Answers:

1. \( 192 \)
2. \( 693 \)
3. \( 784 \)
4. \( 455 \)
5. \( 680 \)
6. \( 279 \)
7. \( 315 \)
8. \( 196 \)
9. \( 402 \)
10. \( 316 \)
11. \( 600 \)
12. \( 315 \)

\boxed{192, 693, 784, 455, 680, 279, 315, 196, 402, 316, 600, 315}