Question

Use _ to understand multi-digit addition.

Answer 1

To understand multi-digit addition using underscores (_), let's break down the process step by step.

### Example Problem
Let's add the numbers 256 and 738.

### Step-by-Step Process

1. **Align the Numbers**
Write the numbers vertically, aligning them by place value (ones, tens, hundreds).

```
256
+ 738
```

2. **Add the Ones Column**
Start by adding the digits in the ones column (rightmost column).

- 6 (from 256) + 8 (from 738) = 14
- Write down 4 and carry over 1.

```
256
+ 738
------
4 (write 4, carry 1)
```

3. **Add the Tens Column**
Next, move to the tens column. Add the digits plus any carry from the previous column.

- 5 (from 256) + 3 (from 738) + 1 (carry) = 9

```
256
+ 738
------
94 (write 9 below, no carry)
```

4. **Add the Hundreds Column**
Finally, add the hundreds column.

- 2 (from 256) + 7 (from 738) = 9

```
256
+ 738
------
994 (write 9 below)
```

### Final Result
Combine all the digits you've written down:

```
256
+ 738
-----
994
```

Thus, 256 + 738 = 994.

### Summary
To perform multi-digit addition:
- Align the numbers by place value.
- Add starting from the rightmost column to the left, carrying over as necessary.
- Write down each answer as you go.

This method ensures accuracy and helps in visualizing the addition process.