Solution - Long subtraction
0.67
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths |
| 2 | . | 5 | 2 | |
| - | 1 | . | 8 | 5 |
| . |
2. Subtract the numbers using long subtraction method
Because the upper digit (2) in the hundredths column is too small to get a positive difference, borrow 1 from the digit (5) in the next number place which becomes (4) and get (12).
| Place value | ones | . | tenths | hundredths |
| 4 | 12 | |||
| 2 | . | 5 | 2 | |
| - | 1 | . | 8 | 5 |
| . |
Subtract the numbers in the hundredths column from the top number:
12-5=7
| Place value | ones | . | tenths | hundredths |
| 4 | 12 | |||
| 2 | . | 5 | 2 | |
| - | 1 | . | 8 | 5 |
| . | 7 |
Because the upper digit (4) in the tenths 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 (14).
| Place value | ones | . | tenths | hundredths |
| 1 | 14 | |||
| 4 | 12 | |||
| 2 | . | 5 | 2 | |
| - | 1 | . | 8 | 5 |
| . | 7 |
Subtract the numbers in the tenths column from the top number:
14-8=6
| Place value | ones | . | tenths | hundredths |
| 1 | 14 | |||
| 4 | 12 | |||
| 2 | . | 5 | 2 | |
| - | 1 | . | 8 | 5 |
| . | 6 | 7 |
Subtract the numbers in the ones column from the top number:
1-1=0
| Place value | ones | . | tenths | hundredths |
| 1 | 14 | |||
| 4 | 12 | |||
| 2 | . | 5 | 2 | |
| - | 1 | . | 8 | 5 |
| 0 | . | 6 | 7 |
The solution is: 0.67
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