Soluzione - Long subtraction
31,51
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths | hundredths |
| 3 | 8 | , | 7 | 1 | |
| 4 | |||||
| - | 3 | , | 2 | ||
| , |
Put zeros in the blank number places:
| Place value | tens | ones | . | tenths | hundredths |
| 3 | 8 | , | 7 | 1 | |
| 4 | , | 0 | 0 | ||
| - | 3 | , | 2 | 0 | |
| , |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the hundredths column from the top number:
1-0-0=1
| Place value | tens | ones | . | tenths | hundredths |
| 3 | 8 | , | 7 | 1 | |
| 4 | , | 0 | 0 | ||
| - | 3 | , | 2 | 0 | |
| , | 1 |
Subtract the numbers in the tenths column from the top number:
7-0-2=5
| Place value | tens | ones | . | tenths | hundredths |
| 3 | 8 | , | 7 | 1 | |
| 4 | , | 0 | 0 | ||
| - | 3 | , | 2 | 0 | |
| , | 5 | 1 |
Subtract the numbers in the ones column from the top number:
8-4-3=1
| Place value | tens | ones | . | tenths | hundredths |
| 3 | 8 | , | 7 | 1 | |
| 4 | , | 0 | 0 | ||
| - | 3 | , | 2 | 0 | |
| 1 | , | 5 | 1 |
Write 3 in the tens place.
| Place value | tens | ones | . | tenths | hundredths |
| 3 | 8 | , | 7 | 1 | |
| 4 | , | 0 | 0 | ||
| - | 3 | , | 2 | 0 | |
| 3 | 1 | , | 5 | 1 |
The solution is: 31,51
Come ci siamo comportati?
Lasciaci un feedbackPerché imparare questo
Why learn this