Vertically align numbers with Larger Number on top:
| 8 | . | 9 | 6 | 7 | |
| − | 7 | . | 2 | 9 | 9 |
Subtract using place value:
| Ones | Tenths | Hundredths | Thousandths | ||
|---|---|---|---|---|---|
| 15 | |||||
| 8 | 5 | 17 | |||
| 8.967 | 8 | . | 9 | 6 | 7 |
| 7.299 | 7 | . | 2 | 9 | 9 |
| Difference | 1 | . | 6 | 6 | 8 |
Column traversal from right to left
Thousandths column:
Thousandths column:
- Since 7 is less than 9, we have to borrow 1 from the Hundredths column
- As a result, 7 becomes 17, and 17 − 9 = 8
- The 6 in the Hundredths column becomes 5
Hundredths column:
- Since 5 is less than 9, we have to borrow 1 from the Tenths column
- As a result, 5 becomes 15, and 15 − 9 = 6
- The 9 in the Tenths column becomes 8
Tenths column:
- 8 − 2 = 6
Ones column:
- 8 − 7 = 1
| 15 | |||||
| 8 | 5 | 17 | |||
| 8 | . | 9 | 6 | 7 | |
| − | 7 | . | 2 | 9 | 9 |
| 1 | . | 6 | 6 | 8 |
Therefore, the Difference between 8.967 and 7.299 is 1.668
Check computation by comparing Larger Number and the Sum of Smaller Number and Difference:
| 1 | 1 | ||||
| 7 | . | 2 | 9 | 9 | |
| 1 | . | 6 | 6 | 8 | |
| 8 | . | 9 | 6 | 7 |
Sum of Smaller Number and Difference = 8.967
Sum of Smaller Number and Difference = Larger Number (8.967 = 8.967) ✓
