Soluzione - Long subtraction
735
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | hundreds | tens | ones |
| 7 | 8 | 4 | |
| - | 4 | 9 | |
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 (8) in the next number place which becomes (7) and get (14).
| Place value | hundreds | tens | ones |
| 7 | 14 | ||
| 7 | 8 | 4 | |
| - | 4 | 9 | |
Subtract the numbers in the ones column from the top number:
14-9=5
| Place value | hundreds | tens | ones |
| 7 | 14 | ||
| 7 | 8 | 4 | |
| - | 4 | 9 | |
| 5 |
Subtract the numbers in the tens column from the top number:
7-4=3
| Place value | hundreds | tens | ones |
| 7 | 14 | ||
| 7 | 8 | 4 | |
| - | 4 | 9 | |
| 3 | 5 |
Write 7 in the hundreds place.
| Place value | hundreds | tens | ones |
| 7 | 14 | ||
| 7 | 8 | 4 | |
| - | 4 | 9 | |
| 7 | 3 | 5 |
The solution is: 735
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