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Basic Math Examples
15-7
Step 1
Step 1.1
Set up the subtraction problem in long subtraction format.
1 | 5 | |
- | 7 |
Step 1.2
Borrow 10 from the digit in the next column to the left. Add the borrowed 10 to 5. Reduce the number that was borrowed from by 1.
0 | 15 | |
1 | 5 | |
- | 7 |
Step 1.3
Subtract 7 from 15.
0 | 15 | |
1 | 5 | |
- | 7 | |
8 |
Step 1.4
Subtract 0 from 0.
0 | 15 | |
1 | 5 | |
- | 7 | |
0 | 8 |
0 | 15 | |
1 | 5 | |
- | 7 | |
0 | 8 |
Step 2
The result of 15-7 is 8.
8