Soluzione - Long subtraction
0,8
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths |
| 4 | , | 5 | |
| - | 3 | , | 7 |
| , |
2. Subtract the numbers using long subtraction method
Because the upper digit (5) in the tenths column is too small to get a positive difference, borrow 1 from the digit (4) in the next number place which becomes (3) and get (15).
| Place value | ones | . | tenths |
| 3 | 15 | ||
| 4 | , | 5 | |
| - | 3 | , | 7 |
| , |
Subtract the numbers in the tenths column from the top number:
15-7=8
| Place value | ones | . | tenths |
| 3 | 15 | ||
| 4 | , | 5 | |
| - | 3 | , | 7 |
| , | 8 |
Subtract the numbers in the ones column from the top number:
3-3=0
| Place value | ones | . | tenths |
| 3 | 15 | ||
| 4 | , | 5 | |
| - | 3 | , | 7 |
| 0 | , | 8 |
The solution is: 0,8
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