Soluzione - Long subtraction
10.672
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 1 | 0 | 8 | 4 | 2 | |
| - | 1 | 7 | 0 | ||
2. Subtract the numbers using long subtraction method
Subtract the numbers in the ones column from the top number:
2-0=2
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 1 | 0 | 8 | 4 | 2 | |
| - | 1 | 7 | 0 | ||
| 2 |
Because the upper digit (4) 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 (14).
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 7 | 14 | ||||
| 1 | 0 | 8 | 4 | 2 | |
| - | 1 | 7 | 0 | ||
| 2 |
Subtract the numbers in the tens column from the top number:
14-7=7
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 7 | 14 | ||||
| 1 | 0 | 8 | 4 | 2 | |
| - | 1 | 7 | 0 | ||
| 7 | 2 |
Subtract the numbers in the hundreds column from the top number:
7-1=6
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 7 | 14 | ||||
| 1 | 0 | 8 | 4 | 2 | |
| - | 1 | 7 | 0 | ||
| 6 | 7 | 2 |
Write 0 in the thousands place.
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 7 | 14 | ||||
| 1 | 0 | 8 | 4 | 2 | |
| - | 1 | 7 | 0 | ||
| 0 | 6 | 7 | 2 |
Write 1 in the ten thousands place.
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 7 | 14 | ||||
| 1 | 0 | 8 | 4 | 2 | |
| - | 1 | 7 | 0 | ||
| 1 | 0 | 6 | 7 | 2 |
The solution is: 10,672
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