Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
Place value | hundreds | tens | ones |
8 | 6 | 4 | |
- | 2 | 8 | 8 |
2. Subtract the numbers using long subtraction method
Because the upper digit (4) in the ones column is too small to get a positive difference, borrow 1 from the digit (6) in the next number place which becomes (5) and get (14).
Place value | hundreds | tens | ones |
5 | 14 | ||
8 | 6 | 4 | |
- | 2 | 8 | 8 |
Subtract the numbers in the ones column from the top number:
14-8=6
Place value | hundreds | tens | ones |
5 | 14 | ||
8 | 6 | 4 | |
- | 2 | 8 | 8 |
6 |
Because the upper digit (5) in the tens column is too small to get a positive difference, borrow 1 from the digit (8) in the next number place which becomes (7) and get (15).
Place value | hundreds | tens | ones |
7 | 15 | ||
5 | 14 | ||
8 | 6 | 4 | |
- | 2 | 8 | 8 |
6 |
Subtract the numbers in the tens column from the top number:
15-8=7
Place value | hundreds | tens | ones |
7 | 15 | ||
5 | 14 | ||
8 | 6 | 4 | |
- | 2 | 8 | 8 |
7 | 6 |
Subtract the numbers in the hundreds column from the top number:
7-2=5
Place value | hundreds | tens | ones |
7 | 15 | ||
5 | 14 | ||
8 | 6 | 4 | |
- | 2 | 8 | 8 |
5 | 7 | 6 |
The solution is: 576
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