Solution - Long subtraction
15.1
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths |
| 2 | 2 | . | 6 | |
| - | 7 | . | 5 | |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the tenths column from the top number:
6-5=1
| Place value | tens | ones | . | tenths |
| 2 | 2 | . | 6 | |
| - | 7 | . | 5 | |
| . | 1 |
Because the upper digit (2) in the ones column is too small to get a positive difference, borrow 1 from the digit (2) in the next number place which becomes (1) and get (12).
| Place value | tens | ones | . | tenths |
| 1 | 12 | |||
| 2 | 2 | . | 6 | |
| - | 7 | . | 5 | |
| . | 1 |
Subtract the numbers in the ones column from the top number:
12-7=5
| Place value | tens | ones | . | tenths |
| 1 | 12 | |||
| 2 | 2 | . | 6 | |
| - | 7 | . | 5 | |
| 5 | . | 1 |
Write 1 in the tens place.
| Place value | tens | ones | . | tenths |
| 1 | 12 | |||
| 2 | 2 | . | 6 | |
| - | 7 | . | 5 | |
| 1 | 5 | . | 1 |
The solution is: 15.1
How did we do?
Please leave us feedback.Why learn this
Why learn this