Soluzione - Long subtraction
49,5
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths |
| 6 | 1 | , | 5 | |
| - | 1 | 2 | ||
| , |
Put zeros in the blank number places:
| Place value | tens | ones | . | tenths |
| 6 | 1 | , | 5 | |
| - | 1 | 2 | , | 0 |
| , |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the tenths column from the top number:
5-0=5
| Place value | tens | ones | . | tenths |
| 6 | 1 | , | 5 | |
| - | 1 | 2 | , | 0 |
| , | 5 |
Because the upper digit (1) in the ones column is too small to get a positive difference, borrow 1 from the digit (6) in the next number place which becomes (5) and get (11).
| Place value | tens | ones | . | tenths |
| 5 | 11 | |||
| 6 | 1 | , | 5 | |
| - | 1 | 2 | , | 0 |
| , | 5 |
Subtract the numbers in the ones column from the top number:
11-2=9
| Place value | tens | ones | . | tenths |
| 5 | 11 | |||
| 6 | 1 | , | 5 | |
| - | 1 | 2 | , | 0 |
| 9 | , | 5 |
Subtract the numbers in the tens column from the top number:
5-1=4
| Place value | tens | ones | . | tenths |
| 5 | 11 | |||
| 6 | 1 | , | 5 | |
| - | 1 | 2 | , | 0 |
| 4 | 9 | , | 5 |
The solution is: 49,5
Come ci siamo comportati?
Lasciaci un feedbackPerché imparare questo
Why learn this