Vertically align numbers with Larger Number on top:
| 2 | |
| − | 1 |
Subtract using place value:
| Ones | |
|---|---|
| 2 | 2 |
| 1 | 1 |
| Difference | 1 |
Column traversal from right to left
Ones column:
Ones column:
- 2 − 1 = 1
| 2 | |
| − | 1 |
| 1 |
Therefore, the Difference between 2 and 1 is 1
Check computation by comparing Larger Number and the Sum of Difference and Smaller Number:
| 1 | |
| 1 | |
| 2 |
Sum of Difference and Smaller Number = 2
Sum of Difference and Smaller Number = Larger Number (2 = 2) ✓
