Soluzione - Long subtraction
2,625
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths | thousandths |
| 5 | , | 7 | 5 | ||
| - | 3 | , | 1 | 2 | 5 |
| , |
Put zeros in the blank number places:
| Place value | ones | . | tenths | hundredths | thousandths |
| 5 | , | 7 | 5 | 0 | |
| - | 3 | , | 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 digit (5) in the next number place which becomes (4) and get (10).
| Place value | ones | . | tenths | hundredths | thousandths |
| 4 | 10 | ||||
| 5 | , | 7 | 5 | 0 | |
| - | 3 | , | 1 | 2 | 5 |
| , |
Subtract the numbers in the thousandths column from the top number:
10-0-5=5
| Place value | ones | . | tenths | hundredths | thousandths |
| 4 | 10 | ||||
| 5 | , | 7 | 5 | 0 | |
| - | 3 | , | 1 | 2 | 5 |
| , | 5 |
Subtract the numbers in the hundredths column from the top number:
4-2=2
| Place value | ones | . | tenths | hundredths | thousandths |
| 4 | 10 | ||||
| 5 | , | 7 | 5 | 0 | |
| - | 3 | , | 1 | 2 | 5 |
| , | 2 | 5 |
Subtract the numbers in the tenths column from the top number:
7-1=6
| Place value | ones | . | tenths | hundredths | thousandths |
| 4 | 10 | ||||
| 5 | , | 7 | 5 | 0 | |
| - | 3 | , | 1 | 2 | 5 |
| , | 6 | 2 | 5 |
Subtract the numbers in the ones column from the top number:
5-3=2
| Place value | ones | . | tenths | hundredths | thousandths |
| 4 | 10 | ||||
| 5 | , | 7 | 5 | 0 | |
| - | 3 | , | 1 | 2 | 5 |
| 2 | , | 6 | 2 | 5 |
The solution is: 2,625
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