Soluzione - Long subtraction
4,83
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths | hundredths |
| 4 | 5 | , | 8 | 2 | |
| - | 4 | 0 | , | 9 | 9 |
| , |
2. Subtract the numbers using long subtraction method
Because the upper digit (2) in the hundredths 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 (12).
| Place value | tens | ones | . | tenths | hundredths |
| 7 | 12 | ||||
| 4 | 5 | , | 8 | 2 | |
| - | 4 | 0 | , | 9 | 9 |
| , |
Subtract the numbers in the hundredths column from the top number:
12-9=3
| Place value | tens | ones | . | tenths | hundredths |
| 7 | 12 | ||||
| 4 | 5 | , | 8 | 2 | |
| - | 4 | 0 | , | 9 | 9 |
| , | 3 |
Because the upper digit (7) in the tenths column is too small to get a positive difference, borrow 1 from the digit (5) in the next number place which becomes (4) and get (17).
| Place value | tens | ones | . | tenths | hundredths |
| 4 | 17 | ||||
| 7 | 12 | ||||
| 4 | 5 | , | 8 | 2 | |
| - | 4 | 0 | , | 9 | 9 |
| , | 3 |
Subtract the numbers in the tenths column from the top number:
17-9=8
| Place value | tens | ones | . | tenths | hundredths |
| 4 | 17 | ||||
| 7 | 12 | ||||
| 4 | 5 | , | 8 | 2 | |
| - | 4 | 0 | , | 9 | 9 |
| , | 8 | 3 |
Subtract the numbers in the ones column from the top number:
4-0=4
| Place value | tens | ones | . | tenths | hundredths |
| 4 | 17 | ||||
| 7 | 12 | ||||
| 4 | 5 | , | 8 | 2 | |
| - | 4 | 0 | , | 9 | 9 |
| 4 | , | 8 | 3 |
Subtract the numbers in the tens column from the top number:
4-4=0
| Place value | tens | ones | . | tenths | hundredths |
| 4 | 17 | ||||
| 7 | 12 | ||||
| 4 | 5 | , | 8 | 2 | |
| - | 4 | 0 | , | 9 | 9 |
| 0 | 4 | , | 8 | 3 |
The solution is: 4,83
Come ci siamo comportati?
Lasciaci un feedbackPerché imparare questo
Why learn this