Soluzione - Long subtraction
72
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | hundreds | tens | ones |
| 2 | 5 | 8 | |
| - | 1 | 8 | 6 |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the ones column from the top number:
8-6=2
| Place value | hundreds | tens | ones |
| 2 | 5 | 8 | |
| - | 1 | 8 | 6 |
| 2 |
Because the upper digit (5) in the tens column is too small to get a positive difference, borrow 1 from the digit (2) in the next number place which becomes (1) and get (15).
| Place value | hundreds | tens | ones |
| 1 | 15 | ||
| 2 | 5 | 8 | |
| - | 1 | 8 | 6 |
| 2 |
Subtract the numbers in the tens column from the top number:
15-8=7
| Place value | hundreds | tens | ones |
| 1 | 15 | ||
| 2 | 5 | 8 | |
| - | 1 | 8 | 6 |
| 7 | 2 |
Subtract the numbers in the hundreds column from the top number:
1-1=0
| Place value | hundreds | tens | ones |
| 1 | 15 | ||
| 2 | 5 | 8 | |
| - | 1 | 8 | 6 |
| 0 | 7 | 2 |
The solution is: 72
Come ci siamo comportati?
Lasciaci un feedbackPerché imparare questo
Why learn this