Here we will show you step-by-step how to calculate 30 plus 39 (30 + 39) using the Long Addition Method. We start by setting up our math problem as follows:
| 3 | 0 | |||||||
| + | 3 | 9 | ||||||
The next step is to add the ones digits together (0 + 9 = 9) like this:
| 3 | 0 | |||||||
| + | 3 | 9 | ||||||
| 9 |
Then in our final step, we add the tens digits together (3 + 3 = 6) like this:
| 3 | 0 | |||||||
| + | 3 | 9 | ||||||
| 6 | 9 |
And that is how you solve 30 plus 39 using the Long Addition Method! The answer is displayed mathematically below:
30 + 39 = 69
Long Addition Calculator
Here you can enter another addition problem for us to explain and solve using the Long Addition Method: