Vertically align numbers with Larger Number on top:
| 7 | 1 | |
| − | 3 | 3 |
Subtract using place value:
| Tens | Ones | |
|---|---|---|
| 6 | 11 | |
| 71 | 7 | 1 |
| 33 | 3 | 3 |
| Difference | 3 | 8 |
Column traversal from right to left
Ones column:
Ones column:
- Since 1 is less than 3, we have to borrow 1 from the Tens column
- As a result, 1 becomes 11, and 11 − 3 = 8
- The 7 in the Tens column becomes 6
Tens column:
- 6 − 3 = 3
| 6 | 11 | |
| 7 | 1 | |
| − | 3 | 3 |
| 3 | 8 |
Therefore, the Difference between 71 and 33 is 38
Check computation by comparing Larger Number and the Sum of Difference and Smaller Number:
| 1 | ||
| 3 | 8 | |
| 3 | 3 | |
| 7 | 1 |
Sum of Difference and Smaller Number = 71
Sum of Difference and Smaller Number = Larger Number (71 = 71) ✓
