Soluzione - Long subtraction
11,4
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths |
| 1 | 5 | , | 5 | |
| 0 | , | 7 | ||
| - | 3 | , | 4 | |
| , |
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 (5) in the next number place which becomes (4) and get (15).
| Place value | tens | ones | . | tenths |
| 4 | 15 | |||
| 1 | 5 | , | 5 | |
| 0 | , | 7 | ||
| - | 3 | , | 4 | |
| , |
Subtract the numbers in the tenths column from the top number:
15-7-4=4
| Place value | tens | ones | . | tenths |
| 4 | 15 | |||
| 1 | 5 | , | 5 | |
| 0 | , | 7 | ||
| - | 3 | , | 4 | |
| , | 4 |
Subtract the numbers in the ones column from the top number:
4-0-3=1
| Place value | tens | ones | . | tenths |
| 4 | 15 | |||
| 1 | 5 | , | 5 | |
| 0 | , | 7 | ||
| - | 3 | , | 4 | |
| 1 | , | 4 |
Write 1 in the tens place.
| Place value | tens | ones | . | tenths |
| 4 | 15 | |||
| 1 | 5 | , | 5 | |
| 0 | , | 7 | ||
| - | 3 | , | 4 | |
| 1 | 1 | , | 4 |
The solution is: 11,4
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