Solution - Long subtraction
2,196
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | thousands | hundreds | tens | ones |
| 2 | 2 | 1 | 5 | |
| 6 | ||||
| - | 1 | 3 | ||
2. Subtract the numbers using long subtraction method
Because the upper digit (5) 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 (15).
| Place value | thousands | hundreds | tens | ones |
| 0 | 15 | |||
| 2 | 2 | 1 | 5 | |
| 6 | ||||
| - | 1 | 3 | ||
Subtract the numbers in the ones column from the top number:
15-6-3=6
| Place value | thousands | hundreds | tens | ones |
| 0 | 15 | |||
| 2 | 2 | 1 | 5 | |
| 6 | ||||
| - | 1 | 3 | ||
| 6 |
Because the upper digit (0) in the tens column is too small to get a positive difference, borrow 1 from the digit (2) in the next number place which becomes (1) and get (10).
| Place value | thousands | hundreds | tens | ones |
| 1 | 10 | |||
| 0 | 15 | |||
| 2 | 2 | 1 | 5 | |
| 6 | ||||
| - | 1 | 3 | ||
| 6 |
Subtract the numbers in the tens column from the top number:
10-1=9
| Place value | thousands | hundreds | tens | ones |
| 1 | 10 | |||
| 0 | 15 | |||
| 2 | 2 | 1 | 5 | |
| 6 | ||||
| - | 1 | 3 | ||
| 9 | 6 |
Write 1 in the hundreds place.
| Place value | thousands | hundreds | tens | ones |
| 1 | 10 | |||
| 0 | 15 | |||
| 2 | 2 | 1 | 5 | |
| 6 | ||||
| - | 1 | 3 | ||
| 1 | 9 | 6 |
Write 2 in the thousands place.
| Place value | thousands | hundreds | tens | ones |
| 1 | 10 | |||
| 0 | 15 | |||
| 2 | 2 | 1 | 5 | |
| 6 | ||||
| - | 1 | 3 | ||
| 2 | 1 | 9 | 6 |
The solution is: 2,196
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