Solution - Long subtraction
15.9
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths |
| 1 | 6 | . | 7 | |
| - | 0 | . | 8 | |
| . |
2. Subtract the numbers using long subtraction method
Because the upper digit (7) in the tenths column is too small to get a positive difference, borrow 1 from the digit (6) in the next number place which becomes (5) and get (17).
| Place value | tens | ones | . | tenths |
| 5 | 17 | |||
| 1 | 6 | . | 7 | |
| - | 0 | . | 8 | |
| . |
Subtract the numbers in the tenths column from the top number:
17-8=9
| Place value | tens | ones | . | tenths |
| 5 | 17 | |||
| 1 | 6 | . | 7 | |
| - | 0 | . | 8 | |
| . | 9 |
Subtract the numbers in the ones column from the top number:
5-0=5
| Place value | tens | ones | . | tenths |
| 5 | 17 | |||
| 1 | 6 | . | 7 | |
| - | 0 | . | 8 | |
| 5 | . | 9 |
Write 1 in the tens place.
| Place value | tens | ones | . | tenths |
| 5 | 17 | |||
| 1 | 6 | . | 7 | |
| - | 0 | . | 8 | |
| 1 | 5 | . | 9 |
The solution is: 15.9
How did we do?
Please leave us feedback.Why learn this
Why learn this