Soluzione - Long subtraction
3,609
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths | thousandths |
| 5 | , | 3 | 5 | 9 | |
| - | 1 | , | 7 | 5 | |
| , |
Put zeros in the blank number places:
| Place value | ones | . | tenths | hundredths | thousandths |
| 5 | , | 3 | 5 | 9 | |
| - | 1 | , | 7 | 5 | 0 |
| , |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the thousandths column from the top number:
9-0=9
| Place value | ones | . | tenths | hundredths | thousandths |
| 5 | , | 3 | 5 | 9 | |
| - | 1 | , | 7 | 5 | 0 |
| , | 9 |
Subtract the numbers in the hundredths column from the top number:
5-5=0
| Place value | ones | . | tenths | hundredths | thousandths |
| 5 | , | 3 | 5 | 9 | |
| - | 1 | , | 7 | 5 | 0 |
| , | 0 | 9 |
Because the upper digit (3) 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 (13).
| Place value | ones | . | tenths | hundredths | thousandths |
| 4 | 13 | ||||
| 5 | , | 3 | 5 | 9 | |
| - | 1 | , | 7 | 5 | 0 |
| , | 0 | 9 |
Subtract the numbers in the tenths column from the top number:
13-7=6
| Place value | ones | . | tenths | hundredths | thousandths |
| 4 | 13 | ||||
| 5 | , | 3 | 5 | 9 | |
| - | 1 | , | 7 | 5 | 0 |
| , | 6 | 0 | 9 |
Subtract the numbers in the ones column from the top number:
4-1=3
| Place value | ones | . | tenths | hundredths | thousandths |
| 4 | 13 | ||||
| 5 | , | 3 | 5 | 9 | |
| - | 1 | , | 7 | 5 | 0 |
| 3 | , | 6 | 0 | 9 |
The solution is: 3,609
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