Solution - Long subtraction
4,083
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | thousands | hundreds | tens | ones |
| 4 | 2 | 6 | 3 | |
| - | 1 | 8 | 0 | |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the ones column from the top number:
3-0=3
| Place value | thousands | hundreds | tens | ones |
| 4 | 2 | 6 | 3 | |
| - | 1 | 8 | 0 | |
| 3 |
Because the upper digit (6) 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 (16).
| Place value | thousands | hundreds | tens | ones |
| 1 | 16 | |||
| 4 | 2 | 6 | 3 | |
| - | 1 | 8 | 0 | |
| 3 |
Subtract the numbers in the tens column from the top number:
16-8=8
| Place value | thousands | hundreds | tens | ones |
| 1 | 16 | |||
| 4 | 2 | 6 | 3 | |
| - | 1 | 8 | 0 | |
| 8 | 3 |
Subtract the numbers in the hundreds column from the top number:
1-1=0
| Place value | thousands | hundreds | tens | ones |
| 1 | 16 | |||
| 4 | 2 | 6 | 3 | |
| - | 1 | 8 | 0 | |
| 0 | 8 | 3 |
Write 4 in the thousands place.
| Place value | thousands | hundreds | tens | ones |
| 1 | 16 | |||
| 4 | 2 | 6 | 3 | |
| - | 1 | 8 | 0 | |
| 4 | 0 | 8 | 3 |
The solution is: 4,083
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