Soluzione - Long subtraction
4.159
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | thousands | hundreds | tens | ones |
| 9 | 0 | 3 | 6 | |
| - | 4 | 8 | 7 | 7 |
2. Subtract the numbers using long subtraction method
Because the upper digit (6) in the ones column is too small to get a positive difference, borrow 1 from the digit (3) in the next number place which becomes (2) and get (16).
| Place value | thousands | hundreds | tens | ones |
| 2 | 16 | |||
| 9 | 0 | 3 | 6 | |
| - | 4 | 8 | 7 | 7 |
Subtract the numbers in the ones column from the top number:
16-7=9
| Place value | thousands | hundreds | tens | ones |
| 2 | 16 | |||
| 9 | 0 | 3 | 6 | |
| - | 4 | 8 | 7 | 7 |
| 9 |
Because the upper digit (2) in the tens column is too small to get a positive difference, borrow 1 from the number to the left (90) which becomes (89) and get (12).
| Place value | thousands | hundreds | tens | ones |
| 8 | 9 | 12 | ||
| 2 | 16 | |||
| 9 | 0 | 3 | 6 | |
| - | 4 | 8 | 7 | 7 |
| 9 |
Subtract the numbers in the tens column from the top number:
12-7=5
| Place value | thousands | hundreds | tens | ones |
| 8 | 9 | 12 | ||
| 2 | 16 | |||
| 9 | 0 | 3 | 6 | |
| - | 4 | 8 | 7 | 7 |
| 5 | 9 |
Subtract the numbers in the hundreds column from the top number:
9-8=1
| Place value | thousands | hundreds | tens | ones |
| 8 | 9 | 12 | ||
| 2 | 16 | |||
| 9 | 0 | 3 | 6 | |
| - | 4 | 8 | 7 | 7 |
| 1 | 5 | 9 |
Subtract the numbers in the thousands column from the top number:
8-4=4
| Place value | thousands | hundreds | tens | ones |
| 8 | 9 | 12 | ||
| 2 | 16 | |||
| 9 | 0 | 3 | 6 | |
| - | 4 | 8 | 7 | 7 |
| 4 | 1 | 5 | 9 |
The solution is: 4,159
Come ci siamo comportati?
Lasciaci un feedbackPerché imparare questo
Why learn this