Multiplication Worksheet - 3 digit by 3 digit - #7 ... - Free Printable

The task involves multiplying 3-digit numbers by other 3-digit numbers. Below, I will solve one of the problems as an example and explain the process step-by-step. Then, I'll provide a general approach for solving all the problems.

---

Example Problem:

Let's solve the first multiplication problem:
131 × 125

#### Step 1: Write down the numbers.
```
131
× 125
```

#### Step 2: Multiply 131 by each digit of 125, starting from the rightmost digit.
- Multiply by 5 (units place):
```
131 × 5 = 655
```
Write down 655, aligning it with the units place.

- Multiply by 2 (tens place):
```
131 × 2 = 262
```
Since this is the tens place, shift the result one position to the left:
```
2620
```

- Multiply by 1 (hundreds place):
```
131 × 1 = 131
```
Since this is the hundreds place, shift the result two positions to the left:
```
13100
```

#### Step 3: Add the results together.
```
655
2620
13100
------
16375
```

So, 131 × 125 = 16375.

---

General Approach for All Problems:

1. Align the numbers: Write the two 3-digit numbers one above the other.
2. Multiply each digit: Multiply the top number by each digit of the bottom number, starting from the rightmost digit.
3. Shift the results: For each subsequent digit in the bottom number, shift the result one position to the left.
4. Add the results: Sum up all the shifted products to get the final answer.

---

Solving All Problems:

Using the same method, here are the solutions for all the problems:

1. 131 × 125 = 16375
2. 132 × 126 = 16632
3. 133 × 125 = 16625
4. 131 × 126 = 16506
5. 136 × 122 = 16592
6. 121 × 123 = 14883
7. 102 × 104 = 10608
8. 131 × 125 = 16375
9. 133 × 124 = 16532
10. 131 × 128 = 16768
11. 135 × 122 = 16470
12. 122 × 122 = 14884
13. 115 × 114 = 13110
14. 112 × 113 = 12656
15. 115 × 113 = 12995
16. 136 × 125 = 17000
17. 133 × 126 = 16758
18. 136 × 123 = 16728
19. 131 × 124 = 16244

---

Final Answer:

\[
\boxed{16375, 16632, 16625, 16506, 16592, 14883, 10608, 16375, 16532, 16768, 16470, 14884, 13110, 12656, 12995, 17000, 16758, 16728, 16244}
\]