Soluzione - Long subtraction
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 3 | , | 7 | ||||
| - | 2 | , | 9 | 1 | 3 | 3 |
| , |
Put zeros in the blank number places:
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 3 | , | 7 | 0 | 0 | 0 | |
| - | 2 | , | 9 | 1 | 3 | 3 |
| , |
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the ten thousandths column is too small to get a positive difference, borrow 1 from the number to the left (700) which becomes (699) and get (10).
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 6 | 9 | 9 | 10 | |||
| 3 | , | 7 | 0 | 0 | 0 | |
| - | 2 | , | 9 | 1 | 3 | 3 |
| , |
Subtract the numbers in the ten thousandths column from the top number:
10-0-3=7
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 6 | 9 | 9 | 10 | |||
| 3 | , | 7 | 0 | 0 | 0 | |
| - | 2 | , | 9 | 1 | 3 | 3 |
| , | 7 |
Subtract the numbers in the thousandths column from the top number:
9-3=6
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 6 | 9 | 9 | 10 | |||
| 3 | , | 7 | 0 | 0 | 0 | |
| - | 2 | , | 9 | 1 | 3 | 3 |
| , | 6 | 7 |
Subtract the numbers in the hundredths column from the top number:
9-1=8
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 6 | 9 | 9 | 10 | |||
| 3 | , | 7 | 0 | 0 | 0 | |
| - | 2 | , | 9 | 1 | 3 | 3 |
| , | 8 | 6 | 7 |
Because the upper digit (6) in the tenths column is too small to get a positive difference, borrow 1 from the digit (3) in the next number place which becomes (2) and get (16).
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 2 | 16 | |||||
| 6 | 9 | 9 | 10 | |||
| 3 | , | 7 | 0 | 0 | 0 | |
| - | 2 | , | 9 | 1 | 3 | 3 |
| , | 8 | 6 | 7 |
Subtract the numbers in the tenths column from the top number:
16-9=7
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 2 | 16 | |||||
| 6 | 9 | 9 | 10 | |||
| 3 | , | 7 | 0 | 0 | 0 | |
| - | 2 | , | 9 | 1 | 3 | 3 |
| , | 7 | 8 | 6 | 7 |
Subtract the numbers in the ones column from the top number:
2-2=0
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 2 | 16 | |||||
| 6 | 9 | 9 | 10 | |||
| 3 | , | 7 | 0 | 0 | 0 | |
| - | 2 | , | 9 | 1 | 3 | 3 |
| 0 | , | 7 | 8 | 6 | 7 |
The solution is: 0,7867
Come ci siamo comportati?
Lasciaci un feedbackPerché imparare questo
Why learn this