Solution - Long subtraction
1,084
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | thousands | hundreds | tens | ones |
| 2 | 5 | 1 | 2 | |
| 1 | ||||
| - | 1 | 4 | 2 | 7 |
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 digit (1) in the next number place which becomes (0) and get (12).
| Place value | thousands | hundreds | tens | ones |
| 0 | 12 | |||
| 2 | 5 | 1 | 2 | |
| 1 | ||||
| - | 1 | 4 | 2 | 7 |
Subtract the numbers in the ones column from the top number:
12-1-7=4
| Place value | thousands | hundreds | tens | ones |
| 0 | 12 | |||
| 2 | 5 | 1 | 2 | |
| 1 | ||||
| - | 1 | 4 | 2 | 7 |
| 4 |
Because the upper digit (0) in the tens column is too small to get a positive difference, borrow 1 from the digit (5) in the next number place which becomes (4) and get (10).
| Place value | thousands | hundreds | tens | ones |
| 4 | 10 | |||
| 0 | 12 | |||
| 2 | 5 | 1 | 2 | |
| 1 | ||||
| - | 1 | 4 | 2 | 7 |
| 4 |
Subtract the numbers in the tens column from the top number:
10-2=8
| Place value | thousands | hundreds | tens | ones |
| 4 | 10 | |||
| 0 | 12 | |||
| 2 | 5 | 1 | 2 | |
| 1 | ||||
| - | 1 | 4 | 2 | 7 |
| 8 | 4 |
Subtract the numbers in the hundreds column from the top number:
4-4=0
| Place value | thousands | hundreds | tens | ones |
| 4 | 10 | |||
| 0 | 12 | |||
| 2 | 5 | 1 | 2 | |
| 1 | ||||
| - | 1 | 4 | 2 | 7 |
| 0 | 8 | 4 |
Subtract the numbers in the thousands column from the top number:
2-1=1
| Place value | thousands | hundreds | tens | ones |
| 4 | 10 | |||
| 0 | 12 | |||
| 2 | 5 | 1 | 2 | |
| 1 | ||||
| - | 1 | 4 | 2 | 7 |
| 1 | 0 | 8 | 4 |
The solution is: 1,084
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