Here we will show you step-by-step how to calculate 30 plus 42 (30 + 42) using the Long Addition Method. We start by setting up our math problem as follows:
| 3 | 0 | |||||||
| + | 4 | 2 | ||||||
The next step is to add the ones digits together (0 + 2 = 2) like this:
| 3 | 0 | |||||||
| + | 4 | 2 | ||||||
| 2 |
Then in our final step, we add the tens digits together (3 + 4 = 7) like this:
| 3 | 0 | |||||||
| + | 4 | 2 | ||||||
| 7 | 2 |
And that is how you solve 30 plus 42 using the Long Addition Method! The answer is displayed mathematically below:
30 + 42 = 72
Long Addition Calculator
Here you can enter another addition problem for us to explain and solve using the Long Addition Method: