Soluzione - Long subtraction
2,625
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths | thousandths |
| 7 | |||||
| 3 | , | 5 | |||
| - | 0 | , | 8 | 7 | 5 |
| , |
Put zeros in the blank number places:
| Place value | ones | . | tenths | hundredths | thousandths |
| 7 | , | 0 | 0 | 0 | |
| 3 | , | 5 | 0 | 0 | |
| - | 0 | , | 8 | 7 | 5 |
| , |
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the thousandths column is too small to get a positive difference, borrow 1 from the number to the left (7.00) which becomes (6.99) and get (10).
| Place value | ones | . | tenths | hundredths | thousandths |
| 6 | 9 | 9 | 10 | ||
| 7 | , | 0 | 0 | 0 | |
| 3 | , | 5 | 0 | 0 | |
| - | 0 | , | 8 | 7 | 5 |
| , |
Subtract the numbers in the thousandths column from the top number:
10-0-0-5=5
| Place value | ones | . | tenths | hundredths | thousandths |
| 6 | 9 | 9 | 10 | ||
| 7 | , | 0 | 0 | 0 | |
| 3 | , | 5 | 0 | 0 | |
| - | 0 | , | 8 | 7 | 5 |
| , | 5 |
Subtract the numbers in the hundredths column from the top number:
9-0-7=2
| Place value | ones | . | tenths | hundredths | thousandths |
| 6 | 9 | 9 | 10 | ||
| 7 | , | 0 | 0 | 0 | |
| 3 | , | 5 | 0 | 0 | |
| - | 0 | , | 8 | 7 | 5 |
| , | 2 | 5 |
Because the upper digit (9) in the tenths 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 (19).
| Place value | ones | . | tenths | hundredths | thousandths |
| 5 | 19 | ||||
| 6 | 9 | 9 | 10 | ||
| 7 | , | 0 | 0 | 0 | |
| 3 | , | 5 | 0 | 0 | |
| - | 0 | , | 8 | 7 | 5 |
| , | 2 | 5 |
Subtract the numbers in the tenths column from the top number:
19-5-8=6
| Place value | ones | . | tenths | hundredths | thousandths |
| 5 | 19 | ||||
| 6 | 9 | 9 | 10 | ||
| 7 | , | 0 | 0 | 0 | |
| 3 | , | 5 | 0 | 0 | |
| - | 0 | , | 8 | 7 | 5 |
| , | 6 | 2 | 5 |
Subtract the numbers in the ones column from the top number:
5-3-0=2
| Place value | ones | . | tenths | hundredths | thousandths |
| 5 | 19 | ||||
| 6 | 9 | 9 | 10 | ||
| 7 | , | 0 | 0 | 0 | |
| 3 | , | 5 | 0 | 0 | |
| - | 0 | , | 8 | 7 | 5 |
| 2 | , | 6 | 2 | 5 |
The solution is: 2,625
Come ci siamo comportati?
Lasciaci un feedbackPerché imparare questo
Why learn this