Add Two Three-digit Numbers
To add two numbers, first align the numbers so that place values are lined up and then start adding from the right most place value.
For example: Let's find the sum of 125 and 211.
First, add the ones.
| 1 | 2 | 5 | |
|
|
2 | 1 | 1 |
| 6 |
Now, add the tens.
| 1 | 2 | 5 | |
|
|
2 | 1 | 1 |
| 3 | 6 |
Add the hundreds.
| 1 | 2 | 5 | |
|
|
2 | 1 | 1 |
| 3 | 3 | 6 |
The sum of 125 and 211 is 336.
