Vertically align numbers with Larger Number on top:
| 8 | |
| − | 1 |
Subtract using place value:
| Ones | |
|---|---|
| 8 | 8 |
| 1 | 1 |
| Difference | 7 |
Column traversal from right to left
Ones column:
- 8 − 1 = 7
| 8 | |
| − | 1 |
| 7 |
Therefore, the Difference between 8 and 1 is 7
Check computation by comparing Larger Number and the Sum of Difference and Smaller Number:
| 7 | |
| 1 | |
| 8 |
Sum of Difference and Smaller Number = 8
Sum of Difference and Smaller Number = Larger Number (8 = 8) ✓
