Soluzione - Long subtraction
3.078
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | thousands | hundreds | tens | ones |
| 8 | 7 | 0 | 2 | |
| - | 5 | 6 | 2 | 4 |
2. Subtract the numbers using long subtraction method
Because the upper digit (2) in the ones column is too small to get a positive difference, borrow 1 from the number to the left (70) which becomes (69) and get (12).
| Place value | thousands | hundreds | tens | ones |
| 6 | 9 | 12 | ||
| 8 | 7 | 0 | 2 | |
| - | 5 | 6 | 2 | 4 |
Subtract the numbers in the ones column from the top number:
12-4=8
| Place value | thousands | hundreds | tens | ones |
| 6 | 9 | 12 | ||
| 8 | 7 | 0 | 2 | |
| - | 5 | 6 | 2 | 4 |
| 8 |
Subtract the numbers in the tens column from the top number:
9-2=7
| Place value | thousands | hundreds | tens | ones |
| 6 | 9 | 12 | ||
| 8 | 7 | 0 | 2 | |
| - | 5 | 6 | 2 | 4 |
| 7 | 8 |
Subtract the numbers in the hundreds column from the top number:
6-6=0
| Place value | thousands | hundreds | tens | ones |
| 6 | 9 | 12 | ||
| 8 | 7 | 0 | 2 | |
| - | 5 | 6 | 2 | 4 |
| 0 | 7 | 8 |
Subtract the numbers in the thousands column from the top number:
8-5=3
| Place value | thousands | hundreds | tens | ones |
| 6 | 9 | 12 | ||
| 8 | 7 | 0 | 2 | |
| - | 5 | 6 | 2 | 4 |
| 3 | 0 | 7 | 8 |
The solution is: 3,078
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