Soluzione - Long subtraction
71
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | hundreds | tens | ones |
| 1 | 1 | 7 | |
| - | 4 | 6 | |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the ones column from the top number:
7-6=1
| Place value | hundreds | tens | ones |
| 1 | 1 | 7 | |
| - | 4 | 6 | |
| 1 |
Because the upper digit (1) in the tens column is too small to get a positive difference, borrow 1 from the digit (1) in the next number place which becomes (0) and get (11).
| Place value | hundreds | tens | ones |
| 0 | 11 | ||
| 1 | 1 | 7 | |
| - | 4 | 6 | |
| 1 |
Subtract the numbers in the tens column from the top number:
11-4=7
| Place value | hundreds | tens | ones |
| 0 | 11 | ||
| 1 | 1 | 7 | |
| - | 4 | 6 | |
| 7 | 1 |
Write 0 in the hundreds place.
| Place value | hundreds | tens | ones |
| 0 | 11 | ||
| 1 | 1 | 7 | |
| - | 4 | 6 | |
| 0 | 7 | 1 |
The solution is: 71
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