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Algebra Examples
21-621−6
Step 1
Step 1.1
Set up the subtraction problem in long subtraction format.
22 | 11 | |
-− | 66 |
Step 1.2
Borrow 1010 from the digit in the next column to the left. Add the borrowed 1010 to 11. Reduce the number that was borrowed from by 11.
11 | 1111 | |
2 | 1 | |
- | 6 |
Step 1.3
Subtract 6 from 11.
1 | 11 | |
2 | 1 | |
- | 6 | |
5 |
Step 1.4
Subtract 0 from 1.
1 | 11 | |
2 | 1 | |
- | 6 | |
1 | 5 |
1 | 11 | |
2 | 1 | |
- | 6 | |
1 | 5 |
Step 2
The result of 21-6 is 15.
15