Here we will show you step-by-step how to calculate 66 plus 81 (66 + 81) using the Long Addition Method. We start by setting up our math problem as follows:
| 6 | 6 | |||||||
| + | 8 | 1 | ||||||
The next step is to add the ones digits together (6 + 1 = 7) like this:
| 6 | 6 | |||||||
| + | 8 | 1 | ||||||
| 7 |
Then in our final step, we add the tens digits together (6 + 8 = 14) like this:
| 6 | 6 | |||||||
| + | 8 | 1 | ||||||
| 1 | 4 | 7 |
And that is how you solve 66 plus 81 using the Long Addition Method! The answer is displayed mathematically below:
66 + 81 = 147
Long Addition Calculator
Here you can enter another addition problem for us to explain and solve using the Long Addition Method: