12+6
Set up the addition in long addition format, placing the larger number on top of the smaller number.
| 1 | 2 | |
| + | 6 |
Add the numbers together from the far right column.
| 1 | 2 | |
| + | 6 | |
| 8 |
Add the numbers together from the next column to the left.
| 1 | 2 | |
| + | 6 | |
| 1 | 8 |
| 1 | 2 | |
| + | 6 | |
| 1 | 8 |
The sum of 12 and 6 is 18.
18
Add 12+6