Soluzione - Long subtraction
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | thousands | hundreds | tens | ones |
| 4 | 8 | 1 | 0 | |
| 3 | 8 | 1 | 0 | |
| - | 5 | |||
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 1 from the digit (1) in the next number place which becomes (0) and get (10).
| Place value | thousands | hundreds | tens | ones |
| 0 | 10 | |||
| 4 | 8 | 1 | 0 | |
| 3 | 8 | 1 | 0 | |
| - | 5 | |||
Subtract the numbers in the ones column from the top number:
10-0-5=5
| Place value | thousands | hundreds | tens | ones |
| 0 | 10 | |||
| 4 | 8 | 1 | 0 | |
| 3 | 8 | 1 | 0 | |
| - | 5 | |||
| 5 |
Because the upper digit (0) in the tens 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 (10).
| Place value | thousands | hundreds | tens | ones |
| 7 | 10 | |||
| 0 | 10 | |||
| 4 | 8 | 1 | 0 | |
| 3 | 8 | 1 | 0 | |
| - | 5 | |||
| 5 |
Subtract the numbers in the tens column from the top number:
10-1=9
| Place value | thousands | hundreds | tens | ones |
| 7 | 10 | |||
| 0 | 10 | |||
| 4 | 8 | 1 | 0 | |
| 3 | 8 | 1 | 0 | |
| - | 5 | |||
| 9 | 5 |
Because the upper digit (7) in the hundreds column is too small to get a positive difference, borrow 1 from the digit (4) in the next number place which becomes (3) and get (17).
| Place value | thousands | hundreds | tens | ones |
| 3 | 17 | |||
| 7 | 10 | |||
| 0 | 10 | |||
| 4 | 8 | 1 | 0 | |
| 3 | 8 | 1 | 0 | |
| - | 5 | |||
| 9 | 5 |
Subtract the numbers in the hundreds column from the top number:
17-8=9
| Place value | thousands | hundreds | tens | ones |
| 3 | 17 | |||
| 7 | 10 | |||
| 0 | 10 | |||
| 4 | 8 | 1 | 0 | |
| 3 | 8 | 1 | 0 | |
| - | 5 | |||
| 9 | 9 | 5 |
Subtract the numbers in the thousands column from the top number:
3-3=0
| Place value | thousands | hundreds | tens | ones |
| 3 | 17 | |||
| 7 | 10 | |||
| 0 | 10 | |||
| 4 | 8 | 1 | 0 | |
| 3 | 8 | 1 | 0 | |
| - | 5 | |||
| 0 | 9 | 9 | 5 |
The solution is: 995
Come ci siamo comportati?
Lasciaci un feedbackPerché imparare questo
Why learn this