Vertically align numbers with Larger Number on top:
| 9 | 0 | |
| − | 3 | 6 |
Subtract using place value:
| Tens | Ones | |
|---|---|---|
| 8 | 10 | |
| 90 | 9 | 0 |
| 36 | 3 | 6 |
| Difference | 5 | 4 |
Column traversal from right to left
Ones column:
Ones column:
- Since 0 is less than 6, we have to borrow 1 from the Tens column
- As a result, 0 becomes 10, and 10 − 6 = 4
- The 9 in the Tens column becomes 8
Tens column:
- 8 − 3 = 5
| 8 | 10 | |
| 9 | 0 | |
| − | 3 | 6 |
| 5 | 4 |
Therefore, the Difference between 90 and 36 is 54
Check computation by comparing Larger Number and the Sum of Difference and Smaller Number:
| 1 | ||
| 5 | 4 | |
| 3 | 6 | |
| 9 | 0 |
Sum of Difference and Smaller Number = 90
Sum of Difference and Smaller Number = Larger Number (90 = 90) ✓
