Vertically align numbers with Larger Number on top:
| 1 | 3 | 5 | |
| − | 2 | 7 |
Subtract using place value:
| Hundreds | Tens | Ones | |
|---|---|---|---|
| 2 | 15 | ||
| 135 | 1 | 3 | 5 |
| 27 | 2 | 7 | |
| Difference | 1 | 0 | 8 |
Column traversal from right to left
Ones column:
Ones column:
- Since 5 is less than 7, we have to borrow 1 from the Tens column
- As a result, 5 becomes 15, and 15 − 7 = 8
- The 3 in the Tens column becomes 2
Tens column:
- 2 − 2 = 0
Hundreds column:
- 1 − 0 = 1
| 2 | 15 | ||
| 1 | 3 | 5 | |
| − | 2 | 7 | |
| 1 | 0 | 8 |
Therefore, the Difference between 135 and 27 is 108
Check computation by comparing Larger Number and the Sum of Difference and Smaller Number:
| 1 | |||
| 1 | 0 | 8 | |
| 2 | 7 | ||
| 1 | 3 | 5 |
Sum of Difference and Smaller Number = 135
Sum of Difference and Smaller Number = Larger Number (135 = 135) ✓
