Solution - Long subtraction
0.175
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths | thousandths |
| 0 | . | 3 | |||
| - | 0 | . | 1 | 2 | 5 |
| . |
Put zeros in the blank number places:
| Place value | ones | . | tenths | hundredths | thousandths |
| 0 | . | 3 | 0 | 0 | |
| - | 0 | . | 1 | 2 | 5 |
| . |
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the thousandths column is too small to get a positive difference, borrow 1 from the number to the left (30) which becomes (29) and get (10).
| Place value | ones | . | tenths | hundredths | thousandths |
| 2 | 9 | 10 | |||
| 0 | . | 3 | 0 | 0 | |
| - | 0 | . | 1 | 2 | 5 |
| . |
Subtract the numbers in the thousandths column from the top number:
10-0-5=5
| Place value | ones | . | tenths | hundredths | thousandths |
| 2 | 9 | 10 | |||
| 0 | . | 3 | 0 | 0 | |
| - | 0 | . | 1 | 2 | 5 |
| . | 5 |
Subtract the numbers in the hundredths column from the top number:
9-2=7
| Place value | ones | . | tenths | hundredths | thousandths |
| 2 | 9 | 10 | |||
| 0 | . | 3 | 0 | 0 | |
| - | 0 | . | 1 | 2 | 5 |
| . | 7 | 5 |
Subtract the numbers in the tenths column from the top number:
2-1=1
| Place value | ones | . | tenths | hundredths | thousandths |
| 2 | 9 | 10 | |||
| 0 | . | 3 | 0 | 0 | |
| - | 0 | . | 1 | 2 | 5 |
| . | 1 | 7 | 5 |
Subtract the numbers in the ones column from the top number:
0-0=0
| Place value | ones | . | tenths | hundredths | thousandths |
| 2 | 9 | 10 | |||
| 0 | . | 3 | 0 | 0 | |
| - | 0 | . | 1 | 2 | 5 |
| 0 | . | 1 | 7 | 5 |
The solution is: 0.175
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