
Here we will show you step-by-step how to calculate 13 plus 8 (13 + 8) using the Long Addition Method. We start by setting up our math problem as follows:
| 1 | 3 | |||||||
| + | 0 | 8 | ||||||
The next step is to add the ones digits together (3 + 8 = 11). Since the sum creates 1 tens digit, we put the 1 in the tens column, and the 1 at the bottom of the ones:
| 1 | ||||||||
| 1 | 3 | |||||||
| + | 0 | 8 | ||||||
| 1 | 
Then in our final step, we add the tens digits together (including the 1 from the previous step): 1 + 0 + 1 = 2 and put that sum at the bottom:
| 1 | ||||||||
| 1 | 3 | |||||||
| + | 0 | 8 | ||||||
| 2 | 1 | 
And that is how you solve 13 plus 8 using the Long Addition Method! The answer is displayed mathematically below:
13 + 8 = 21
Long Addition Calculator
Here you can enter another addition problem for us to explain and solve using the Long Addition Method:
