Soluzione - Long subtraction
3,8
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths |
| 9 | , | 5 | |
| 1 | , | 9 | |
| - | 3 | , | 8 |
| , |
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 2 from the digit (9) in the next number place which becomes (7) and get (25).
| Place value | ones | . | tenths |
| 7 | 25 | ||
| 9 | , | 5 | |
| 1 | , | 9 | |
| - | 3 | , | 8 |
| , |
Subtract the numbers in the tenths column from the top number:
25-9-8=8
| Place value | ones | . | tenths |
| 7 | 25 | ||
| 9 | , | 5 | |
| 1 | , | 9 | |
| - | 3 | , | 8 |
| , | 8 |
Subtract the numbers in the ones column from the top number:
7-1-3=3
| Place value | ones | . | tenths |
| 7 | 25 | ||
| 9 | , | 5 | |
| 1 | , | 9 | |
| - | 3 | , | 8 |
| 3 | , | 8 |
The solution is: 3,8
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