Here we will show you step-by-step how to calculate 84 plus 85 (84 + 85) using the Long Addition Method. We start by setting up our math problem as follows:
| 8 | 4 | |||||||
| + | 8 | 5 | ||||||
The next step is to add the ones digits together (4 + 5 = 9) like this:
| 8 | 4 | |||||||
| + | 8 | 5 | ||||||
| 9 |
Then in our final step, we add the tens digits together (8 + 8 = 16) like this:
| 8 | 4 | |||||||
| + | 8 | 5 | ||||||
| 1 | 6 | 9 |
And that is how you solve 84 plus 85 using the Long Addition Method! The answer is displayed mathematically below:
84 + 85 = 169
Long Addition Calculator
Here you can enter another addition problem for us to explain and solve using the Long Addition Method: