Soluzione - Long subtraction
326
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | hundreds | tens | ones |
| 5 | 0 | 0 | |
| 8 | 0 | ||
| - | 9 | 4 | |
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the ones 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 | hundreds | tens | ones |
| 4 | 9 | 10 | |
| 5 | 0 | 0 | |
| 8 | 0 | ||
| - | 9 | 4 | |
Subtract the numbers in the ones column from the top number:
10-0-4=6
| Place value | hundreds | tens | ones |
| 4 | 9 | 10 | |
| 5 | 0 | 0 | |
| 8 | 0 | ||
| - | 9 | 4 | |
| 6 |
Because the upper digit (9) in the tens column is too small to get a positive difference, borrow 1 from the digit (4) in the next number place which becomes (3) and get (19).
| Place value | hundreds | tens | ones |
| 3 | 19 | ||
| 4 | 9 | 10 | |
| 5 | 0 | 0 | |
| 8 | 0 | ||
| - | 9 | 4 | |
| 6 |
Subtract the numbers in the tens column from the top number:
19-8-9=2
| Place value | hundreds | tens | ones |
| 3 | 19 | ||
| 4 | 9 | 10 | |
| 5 | 0 | 0 | |
| 8 | 0 | ||
| - | 9 | 4 | |
| 2 | 6 |
Write 3 in the hundreds place.
| Place value | hundreds | tens | ones |
| 3 | 19 | ||
| 4 | 9 | 10 | |
| 5 | 0 | 0 | |
| 8 | 0 | ||
| - | 9 | 4 | |
| 3 | 2 | 6 |
The solution is: 326
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