Soluzione - Long subtraction
11,48
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths | hundredths |
| 1 | 7 | , | 1 | 8 | |
| - | 5 | , | 7 | ||
| , |
Put zeros in the blank number places:
| Place value | tens | ones | . | tenths | hundredths |
| 1 | 7 | , | 1 | 8 | |
| - | 5 | , | 7 | 0 | |
| , |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the hundredths column from the top number:
8-0=8
| Place value | tens | ones | . | tenths | hundredths |
| 1 | 7 | , | 1 | 8 | |
| - | 5 | , | 7 | 0 | |
| , | 8 |
Because the upper digit (1) in the tenths column is too small to get a positive difference, borrow 1 from the digit (7) in the next number place which becomes (6) and get (11).
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 11 | ||||
| 1 | 7 | , | 1 | 8 | |
| - | 5 | , | 7 | 0 | |
| , | 8 |
Subtract the numbers in the tenths column from the top number:
11-7=4
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 11 | ||||
| 1 | 7 | , | 1 | 8 | |
| - | 5 | , | 7 | 0 | |
| , | 4 | 8 |
Subtract the numbers in the ones column from the top number:
6-5=1
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 11 | ||||
| 1 | 7 | , | 1 | 8 | |
| - | 5 | , | 7 | 0 | |
| 1 | , | 4 | 8 |
Write 1 in the tens place.
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 11 | ||||
| 1 | 7 | , | 1 | 8 | |
| - | 5 | , | 7 | 0 | |
| 1 | 1 | , | 4 | 8 |
The solution is: 11,48
Come ci siamo comportati?
Lasciaci un feedbackPerché imparare questo
Why learn this