Vertically align numbers with Larger Number on top:
7 | 3 | |
− | 1 | 5 |
Subtract using place value:
Tens | Ones | |
---|---|---|
6 | 13 | |
73 | 7 | 3 |
15 | 1 | 5 |
Difference | 5 | 8 |
Column traversal from right to left
Ones column:
Ones column:
- Since 3 is less than 5, we have to borrow 1 from the Tens column
- As a result, 3 becomes 13, and 13 − 5 = 8
- The 7 in the Tens column becomes 6
Tens column:
- 6 − 1 = 5
6 | 13 | |
7 | 3 | |
− | 1 | 5 |
5 | 8 |
Therefore, the Difference between 73 and 15 is 58
Check computation by comparing Larger Number and the Sum of Difference and Smaller Number:
1 | ||
5 | 8 | |
1 | 5 | |
7 | 3 |
Sum of Difference and Smaller Number = 73
Sum of Difference and Smaller Number = Larger Number (73 = 73) ✓