Soluzione - Long subtraction
49
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones |
| 7 | 0 | |
| 7 | ||
| - | 1 | 4 |
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the ones column is too small to get a positive difference, borrow 2 from the digit (7) in the next number place which becomes (5) and get (20).
| Place value | tens | ones |
| 5 | 20 | |
| 7 | 0 | |
| 7 | ||
| - | 1 | 4 |
Subtract the numbers in the ones column from the top number:
20-7-4=9
| Place value | tens | ones |
| 5 | 20 | |
| 7 | 0 | |
| 7 | ||
| - | 1 | 4 |
| 9 |
Subtract the numbers in the tens column from the top number:
5-1=4
| Place value | tens | ones |
| 5 | 20 | |
| 7 | 0 | |
| 7 | ||
| - | 1 | 4 |
| 4 | 9 |
The solution is: 49
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