Solution - Long subtraction
0.525
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths | thousandths |
| 1 | . | 7 | 5 | 5 | |
| - | 1 | . | 2 | 3 | |
| . |
Put zeros in the blank number places:
| Place value | ones | . | tenths | hundredths | thousandths |
| 1 | . | 7 | 5 | 5 | |
| - | 1 | . | 2 | 3 | 0 |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the thousandths column from the top number:
5-0=5
| Place value | ones | . | tenths | hundredths | thousandths |
| 1 | . | 7 | 5 | 5 | |
| - | 1 | . | 2 | 3 | 0 |
| . | 5 |
Subtract the numbers in the hundredths column from the top number:
5-3=2
| Place value | ones | . | tenths | hundredths | thousandths |
| 1 | . | 7 | 5 | 5 | |
| - | 1 | . | 2 | 3 | 0 |
| . | 2 | 5 |
Subtract the numbers in the tenths column from the top number:
7-2=5
| Place value | ones | . | tenths | hundredths | thousandths |
| 1 | . | 7 | 5 | 5 | |
| - | 1 | . | 2 | 3 | 0 |
| . | 5 | 2 | 5 |
Subtract the numbers in the ones column from the top number:
1-1=0
| Place value | ones | . | tenths | hundredths | thousandths |
| 1 | . | 7 | 5 | 5 | |
| - | 1 | . | 2 | 3 | 0 |
| 0 | . | 5 | 2 | 5 |
The solution is: 0.525
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