Here we will show you step-by-step how to calculate 1 minus 91 using the long subtraction method.
Before we continue, note that 1 is called the minuend and 91 is called the subtrahend.
To solve the problem 1 minus 91 using long subtraction, we first put the largest number on top and the smallest number at the bottom like this:
| 9 | 1 | |||||||
| - | 0 | 1 | ||||||
Then you subtract the ones digits (1 - 1 = 0) like this:
| 9 | 1 | |||||||
| - | 0 | 1 | ||||||
| 0 |
Next you subtract the tens digits (9 - 0 = 9) like this:
| 9 | 1 | |||||||
| - | 0 | 1 | ||||||
| 9 | 0 |
Note that since the minuend is smaller than the subtrahend, the answer is a negative number.
And that's it. The problem with the answer is displayed below:
1 - 91 = -90
Long Subtraction Calculator
Here you can enter another subtraction problem for us to explain and solve using the long subtraction method: