Soluzione - Long subtraction
0,5
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths |
| 6 | , | 4 | |
| 4 | , | 1 | |
| - | 1 | , | 8 |
| , |
2. Subtract the numbers using long subtraction method
Because the upper digit (4) in the tenths column is too small to get a positive difference, borrow 1 from the digit (6) in the next number place which becomes (5) and get (14).
| Place value | ones | . | tenths |
| 5 | 14 | ||
| 6 | , | 4 | |
| 4 | , | 1 | |
| - | 1 | , | 8 |
| , |
Subtract the numbers in the tenths column from the top number:
14-1-8=5
| Place value | ones | . | tenths |
| 5 | 14 | ||
| 6 | , | 4 | |
| 4 | , | 1 | |
| - | 1 | , | 8 |
| , | 5 |
Subtract the numbers in the ones column from the top number:
5-4-1=0
| Place value | ones | . | tenths |
| 5 | 14 | ||
| 6 | , | 4 | |
| 4 | , | 1 | |
| - | 1 | , | 8 |
| 0 | , | 5 |
The solution is: 0,5
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