Vertically align numbers with Larger Number on top:
| 4 | 8 | 3 | 6 | |
| − | 1 | 9 | 6 | 8 |
Subtract using place value:
| Thousands | Hundreds | Tens | Ones | |
|---|---|---|---|---|
| 17 | 12 | |||
| 3 | 7 | 2 | 16 | |
| 4,836 | 4 | 8 | 3 | 6 |
| 1,968 | 1 | 9 | 6 | 8 |
| Difference | 2 | 8 | 6 | 8 |
Column traversal from right to left
Ones column:
Ones column:
- Since 6 is less than 8, we have to borrow 1 from the Tens column
- As a result, 6 becomes 16, and 16 − 8 = 8
- The 3 in the Tens column becomes 2
Tens column:
- Since 2 is less than 6, we have to borrow 1 from the Hundreds column
- As a result, 2 becomes 12, and 12 − 6 = 6
- The 8 in the Hundreds column becomes 7
Hundreds column:
- Since 7 is less than 9, we have to borrow 1 from the Thousands column
- As a result, 7 becomes 17, and 17 − 9 = 8
- The 4 in the Thousands column becomes 3
Thousands column:
- 3 − 1 = 2
| 17 | 12 | |||
| 3 | 7 | 2 | 16 | |
| 4 | 8 | 3 | 6 | |
| − | 1 | 9 | 6 | 8 |
| 2 | 8 | 6 | 8 |
Therefore, the Difference between 4,836 and 1,968 is 2,868
Check computation by comparing Larger Number and the Sum of Difference and Smaller Number:
| 1 | 1 | 1 | ||
| 2 | 8 | 6 | 8 | |
| 1 | 9 | 6 | 8 | |
| 4 | 8 | 3 | 6 |
Sum of Difference and Smaller Number = 4,836
Sum of Difference and Smaller Number = Larger Number (4,836 = 4,836) ✓
