Soluzione - Long subtraction
3.449
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | thousands | hundreds | tens | ones |
| 3 | 4 | 5 | 1 | |
| - | 2 | |||
2. Subtract the numbers using long subtraction method
Because the upper digit (1) in the ones column is too small to get a positive difference, borrow 1 from the digit (5) in the next number place which becomes (4) and get (11).
| Place value | thousands | hundreds | tens | ones |
| 4 | 11 | |||
| 3 | 4 | 5 | 1 | |
| - | 2 | |||
Subtract the numbers in the ones column from the top number:
11-2=9
| Place value | thousands | hundreds | tens | ones |
| 4 | 11 | |||
| 3 | 4 | 5 | 1 | |
| - | 2 | |||
| 9 |
Write 4 in the tens place.
| Place value | thousands | hundreds | tens | ones |
| 4 | 11 | |||
| 3 | 4 | 5 | 1 | |
| - | 2 | |||
| 4 | 9 |
Write 4 in the hundreds place.
| Place value | thousands | hundreds | tens | ones |
| 4 | 11 | |||
| 3 | 4 | 5 | 1 | |
| - | 2 | |||
| 4 | 4 | 9 |
Write 3 in the thousands place.
| Place value | thousands | hundreds | tens | ones |
| 4 | 11 | |||
| 3 | 4 | 5 | 1 | |
| - | 2 | |||
| 3 | 4 | 4 | 9 |
The solution is: 3,449
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