Vertically align numbers with Larger Number on top:
1 | 0 | |
− | 2 |
Subtract using place value:
Tens | Ones | |
---|---|---|
0 | 10 | |
10 | 1 | 0 |
2 | 2 | |
Difference | 8 |
Column traversal from right to left
Ones column:
Ones column:
- Since 0 is less than 2, we have to borrow 1 from the Tens column
- As a result, 0 becomes 10, and 10 − 2 = 8
- The 1 in the Tens column becomes 0
Tens column:
- 0 − 0 = 0
Note: Leading zero is dropped
0 | 10 | |
1 | 0 | |
− | 2 | |
8 |
Therefore, the Difference between 10 and 2 is 8
Check computation by comparing Larger Number and the Sum of Difference and Smaller Number:
1 | ||
8 | ||
2 | ||
1 | 0 |
Sum of Difference and Smaller Number = 10
Sum of Difference and Smaller Number = Larger Number (10 = 10) ✓