Solution - Long subtraction
1,243
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | thousands | hundreds | tens | ones |
| 2 | 7 | 6 | 6 | |
| - | 1 | 5 | 2 | 3 |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the ones column from the top number:
6-3=3
| Place value | thousands | hundreds | tens | ones |
| 2 | 7 | 6 | 6 | |
| - | 1 | 5 | 2 | 3 |
| 3 |
Subtract the numbers in the tens column from the top number:
6-2=4
| Place value | thousands | hundreds | tens | ones |
| 2 | 7 | 6 | 6 | |
| - | 1 | 5 | 2 | 3 |
| 4 | 3 |
Subtract the numbers in the hundreds column from the top number:
7-5=2
| Place value | thousands | hundreds | tens | ones |
| 2 | 7 | 6 | 6 | |
| - | 1 | 5 | 2 | 3 |
| 2 | 4 | 3 |
Subtract the numbers in the thousands column from the top number:
2-1=1
| Place value | thousands | hundreds | tens | ones |
| 2 | 7 | 6 | 6 | |
| - | 1 | 5 | 2 | 3 |
| 1 | 2 | 4 | 3 |
The solution is: 1,243
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