Soluzione - Long subtraction
2,8
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
Place value | ones | . | tenths |
8 | , | 1 | |
- | 5 | , | 3 |
, |
2. Subtract the numbers using long subtraction method
Because the upper digit (1) in the tenths column is too small to get a positive difference, borrow 1 from the digit (8) in the next number place which becomes (7) and get (11).
Place value | ones | . | tenths |
7 | 11 | ||
8 | , | 1 | |
- | 5 | , | 3 |
, |
Subtract the numbers in the tenths column from the top number:
11-3=8
Place value | ones | . | tenths |
7 | 11 | ||
8 | , | 1 | |
- | 5 | , | 3 |
, | 8 |
Subtract the numbers in the ones column from the top number:
7-5=2
Place value | ones | . | tenths |
7 | 11 | ||
8 | , | 1 | |
- | 5 | , | 3 |
2 | , | 8 |
The solution is: 2,8
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