Solution - Long subtraction
4,340
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | thousands | hundreds | tens | ones |
| 5 | 0 | 0 | 0 | |
| - | 6 | 6 | 0 | |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the ones column from the top number:
0-0=0
| Place value | thousands | hundreds | tens | ones |
| 5 | 0 | 0 | 0 | |
| - | 6 | 6 | 0 | |
| 0 |
Because the upper digit (0) in the tens column is too small to get a positive difference, borrow 1 from the number to the left (50) which becomes (49) and get (10).
| Place value | thousands | hundreds | tens | ones |
| 4 | 9 | 10 | ||
| 5 | 0 | 0 | 0 | |
| - | 6 | 6 | 0 | |
| 0 |
Subtract the numbers in the tens column from the top number:
10-6=4
| Place value | thousands | hundreds | tens | ones |
| 4 | 9 | 10 | ||
| 5 | 0 | 0 | 0 | |
| - | 6 | 6 | 0 | |
| 4 | 0 |
Subtract the numbers in the hundreds column from the top number:
9-6=3
| Place value | thousands | hundreds | tens | ones |
| 4 | 9 | 10 | ||
| 5 | 0 | 0 | 0 | |
| - | 6 | 6 | 0 | |
| 3 | 4 | 0 |
Write 4 in the thousands place.
| Place value | thousands | hundreds | tens | ones |
| 4 | 9 | 10 | ||
| 5 | 0 | 0 | 0 | |
| - | 6 | 6 | 0 | |
| 4 | 3 | 4 | 0 |
The solution is: 4,340
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