Solution - Long subtraction
0.53
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths |
| 8 | . | 2 | 4 | |
| - | 7 | . | 7 | 1 |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the hundredths column from the top number:
4-1=3
| Place value | ones | . | tenths | hundredths |
| 8 | . | 2 | 4 | |
| - | 7 | . | 7 | 1 |
| . | 3 |
Because the upper digit (2) in the tenths column is too small to get a positive difference, borrow 1 from the digit (8) in the next number place which becomes (7) and get (12).
| Place value | ones | . | tenths | hundredths |
| 7 | 12 | |||
| 8 | . | 2 | 4 | |
| - | 7 | . | 7 | 1 |
| . | 3 |
Subtract the numbers in the tenths column from the top number:
12-7=5
| Place value | ones | . | tenths | hundredths |
| 7 | 12 | |||
| 8 | . | 2 | 4 | |
| - | 7 | . | 7 | 1 |
| . | 5 | 3 |
Subtract the numbers in the ones column from the top number:
7-7=0
| Place value | ones | . | tenths | hundredths |
| 7 | 12 | |||
| 8 | . | 2 | 4 | |
| - | 7 | . | 7 | 1 |
| 0 | . | 5 | 3 |
The solution is: 0.53
How did we do?
Please leave us feedback.Why learn this
Why learn this