Soluzione - Long subtraction
28
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones |
| 4 | 0 | |
| 4 | ||
| - | 8 | |
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 (4) in the next number place which becomes (2) and get (20).
| Place value | tens | ones |
| 2 | 20 | |
| 4 | 0 | |
| 4 | ||
| - | 8 | |
Subtract the numbers in the ones column from the top number:
20-4-8=8
| Place value | tens | ones |
| 2 | 20 | |
| 4 | 0 | |
| 4 | ||
| - | 8 | |
| 8 |
Write 2 in the tens place.
| Place value | tens | ones |
| 2 | 20 | |
| 4 | 0 | |
| 4 | ||
| - | 8 | |
| 2 | 8 |
The solution is: 28
Come ci siamo comportati?
Lasciaci un feedbackPerché imparare questo
Why learn this