Soluzione - Long subtraction
18,5
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths |
| 1 | 8 | , | 7 | |
| - | 0 | , | 2 | |
| , |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the tenths column from the top number:
7-2=5
| Place value | tens | ones | . | tenths |
| 1 | 8 | , | 7 | |
| - | 0 | , | 2 | |
| , | 5 |
Subtract the numbers in the ones column from the top number:
8-0=8
| Place value | tens | ones | . | tenths |
| 1 | 8 | , | 7 | |
| - | 0 | , | 2 | |
| 8 | , | 5 |
Write 1 in the tens place.
| Place value | tens | ones | . | tenths |
| 1 | 8 | , | 7 | |
| - | 0 | , | 2 | |
| 1 | 8 | , | 5 |
The solution is: 18,5
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