Soluzione - Long subtraction
30.490
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 7 | 0 | 9 | 9 | 0 | |
| - | 4 | 0 | 5 | 0 | 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 | ten thousands | thousands | hundreds | tens | ones |
| 7 | 0 | 9 | 9 | 0 | |
| - | 4 | 0 | 5 | 0 | 0 |
| 0 |
Subtract the numbers in the tens column from the top number:
9-0=9
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 7 | 0 | 9 | 9 | 0 | |
| - | 4 | 0 | 5 | 0 | 0 |
| 9 | 0 |
Subtract the numbers in the hundreds column from the top number:
9-5=4
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 7 | 0 | 9 | 9 | 0 | |
| - | 4 | 0 | 5 | 0 | 0 |
| 4 | 9 | 0 |
Subtract the numbers in the thousands column from the top number:
0-0=0
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 7 | 0 | 9 | 9 | 0 | |
| - | 4 | 0 | 5 | 0 | 0 |
| 0 | 4 | 9 | 0 |
Subtract the numbers in the ten thousands column from the top number:
7-4=3
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 7 | 0 | 9 | 9 | 0 | |
| - | 4 | 0 | 5 | 0 | 0 |
| 3 | 0 | 4 | 9 | 0 |
The solution is: 30,490
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