Here we will show you step-by-step how to calculate 85 plus 87 (85 + 87) using the Long Addition Method. We start by setting up our math problem as follows:
| 8 | 5 | |||||||
| + | 8 | 7 | ||||||
The next step is to add the ones digits together (5 + 7 = 12). Since the sum creates 1 tens digit, we put the 1 in the tens column, and the 2 at the bottom of the ones:
| 1 | ||||||||
| 8 | 5 | |||||||
| + | 8 | 7 | ||||||
| 2 |
Then in our final step, we add the tens digits together (including the 1 from the previous step): 8 + 8 + 1 = 17 and put that sum at the bottom:
| 1 | ||||||||
| 8 | 5 | |||||||
| + | 8 | 7 | ||||||
| 1 | 7 | 2 |
And that is how you solve 85 plus 87 using the Long Addition Method! The answer is displayed mathematically below:
85 + 87 = 172
Long Addition Calculator
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