Soluzione - Long subtraction
87
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | thousands | hundreds | tens | ones |
| 1 | 1 | 1 | 3 | |
| - | 1 | 0 | 2 | 6 |
2. Subtract the numbers using long subtraction method
Because the upper digit (3) 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 (13).
| Place value | thousands | hundreds | tens | ones |
| 0 | 13 | |||
| 1 | 1 | 1 | 3 | |
| - | 1 | 0 | 2 | 6 |
Subtract the numbers in the ones column from the top number:
13-6=7
| Place value | thousands | hundreds | tens | ones |
| 0 | 13 | |||
| 1 | 1 | 1 | 3 | |
| - | 1 | 0 | 2 | 6 |
| 7 |
Because the upper digit (0) in the tens 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 | |||
| 0 | 13 | |||
| 1 | 1 | 1 | 3 | |
| - | 1 | 0 | 2 | 6 |
| 7 |
Subtract the numbers in the tens column from the top number:
10-2=8
| Place value | thousands | hundreds | tens | ones |
| 0 | 10 | |||
| 0 | 13 | |||
| 1 | 1 | 1 | 3 | |
| - | 1 | 0 | 2 | 6 |
| 8 | 7 |
Subtract the numbers in the hundreds column from the top number:
0-0=0
| Place value | thousands | hundreds | tens | ones |
| 0 | 10 | |||
| 0 | 13 | |||
| 1 | 1 | 1 | 3 | |
| - | 1 | 0 | 2 | 6 |
| 0 | 8 | 7 |
Subtract the numbers in the thousands column from the top number:
1-1=0
| Place value | thousands | hundreds | tens | ones |
| 0 | 10 | |||
| 0 | 13 | |||
| 1 | 1 | 1 | 3 | |
| - | 1 | 0 | 2 | 6 |
| 0 | 0 | 8 | 7 |
The solution is: 87
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