Soluzione - Long subtraction
23.429
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 | 0 | 0 | 2 | |
| - | 4 | 6 | 5 | 7 | 3 |
2. Subtract the numbers using long subtraction method
Because the upper digit (2) in the ones column is too small to get a positive difference, borrow 1 from the number to the left (7.000) which becomes (6.999) and get (12).
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 6 | 9 | 9 | 9 | 12 | |
| 7 | 0 | 0 | 0 | 2 | |
| - | 4 | 6 | 5 | 7 | 3 |
Subtract the numbers in the ones column from the top number:
12-3=9
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 6 | 9 | 9 | 9 | 12 | |
| 7 | 0 | 0 | 0 | 2 | |
| - | 4 | 6 | 5 | 7 | 3 |
| 9 |
Subtract the numbers in the tens column from the top number:
9-7=2
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 6 | 9 | 9 | 9 | 12 | |
| 7 | 0 | 0 | 0 | 2 | |
| - | 4 | 6 | 5 | 7 | 3 |
| 2 | 9 |
Subtract the numbers in the hundreds column from the top number:
9-5=4
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 6 | 9 | 9 | 9 | 12 | |
| 7 | 0 | 0 | 0 | 2 | |
| - | 4 | 6 | 5 | 7 | 3 |
| 4 | 2 | 9 |
Subtract the numbers in the thousands column from the top number:
9-6=3
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 6 | 9 | 9 | 9 | 12 | |
| 7 | 0 | 0 | 0 | 2 | |
| - | 4 | 6 | 5 | 7 | 3 |
| 3 | 4 | 2 | 9 |
Subtract the numbers in the ten thousands column from the top number:
6-4=2
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 6 | 9 | 9 | 9 | 12 | |
| 7 | 0 | 0 | 0 | 2 | |
| - | 4 | 6 | 5 | 7 | 3 |
| 2 | 3 | 4 | 2 | 9 |
The solution is: 23,429
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