Soluzione - Long subtraction
564,8
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | hundreds | tens | ones | . | tenths |
| 8 | 2 | 0 | , | 6 | |
| - | 2 | 5 | 5 | , | 8 |
| , |
2. Subtract the numbers using long subtraction method
Because the upper digit (6) in the tenths column is too small to get a positive difference, borrow 1 from the number to the left (20) which becomes (19) and get (16).
| Place value | hundreds | tens | ones | . | tenths |
| 1 | 16 | ||||
| 8 | 2 | 0 | , | 6 | |
| - | 2 | 5 | 5 | , | 8 |
| , |
Subtract the numbers in the tenths column from the top number:
16-8=8
| Place value | hundreds | tens | ones | . | tenths |
| 1 | 16 | ||||
| 8 | 2 | 0 | , | 6 | |
| - | 2 | 5 | 5 | , | 8 |
| , | 8 |
Subtract the numbers in the ones column from the top number:
9-5=4
| Place value | hundreds | tens | ones | . | tenths |
| 1 | 16 | ||||
| 8 | 2 | 0 | , | 6 | |
| - | 2 | 5 | 5 | , | 8 |
| 4 | , | 8 |
Because the upper digit (1) in the tens 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 (11).
| Place value | hundreds | tens | ones | . | tenths |
| 7 | 12 | ||||
| 1 | 16 | ||||
| 8 | 2 | 0 | , | 6 | |
| - | 2 | 5 | 5 | , | 8 |
| 4 | , | 8 |
Subtract the numbers in the tens column from the top number:
12-5=7
| Place value | hundreds | tens | ones | . | tenths |
| 7 | 12 | ||||
| 1 | 16 | ||||
| 8 | 2 | 0 | , | 6 | |
| - | 2 | 5 | 5 | , | 8 |
| 6 | 4 | , | 8 |
Subtract the numbers in the hundreds column from the top number:
7-2=5
| Place value | hundreds | tens | ones | . | tenths |
| 7 | 12 | ||||
| 1 | 16 | ||||
| 8 | 2 | 0 | , | 6 | |
| - | 2 | 5 | 5 | , | 8 |
| 5 | 6 | 4 | , | 8 |
The solution is: 564,8
Come ci siamo comportati?
Lasciaci un feedbackPerché imparare questo
Why learn this