Here we will show you step-by-step how to calculate 78 plus 40 (78 + 40) using the Long Addition Method. We start by setting up our math problem as follows:
| 7 | 8 | |||||||
| + | 4 | 0 | ||||||
The next step is to add the ones digits together (8 + 0 = 8) like this:
| 7 | 8 | |||||||
| + | 4 | 0 | ||||||
| 8 |
Then in our final step, we add the tens digits together (7 + 4 = 11) like this:
| 7 | 8 | |||||||
| + | 4 | 0 | ||||||
| 1 | 1 | 8 |
And that is how you solve 78 plus 40 using the Long Addition Method! The answer is displayed mathematically below:
78 + 40 = 118
Long Addition Calculator
Here you can enter another addition problem for us to explain and solve using the Long Addition Method: