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 | hundred thousandths |
| 4 | , | 0 | 0 | 3 | |||
| - | 0 | , | 0 | 3 | 6 | 8 | 3 |
| , |
Put zeros in the blank number places:
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths |
| 4 | , | 0 | 0 | 3 | 0 | 0 | |
| - | 0 | , | 0 | 3 | 6 | 8 | 3 |
| , |
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the hundred thousandths column is too small to get a positive difference, borrow 1 from the number to the left (30) which becomes (29) and get (10).
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths |
| 2 | 9 | 10 | |||||
| 4 | , | 0 | 0 | 3 | 0 | 0 | |
| - | 0 | , | 0 | 3 | 6 | 8 | 3 |
| , |
Subtract the numbers in the hundred thousandths column from the top number:
10-0-3=7
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths |
| 2 | 9 | 10 | |||||
| 4 | , | 0 | 0 | 3 | 0 | 0 | |
| - | 0 | , | 0 | 3 | 6 | 8 | 3 |
| , | 7 |
Subtract the numbers in the ten thousandths column from the top number:
9-8=1
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths |
| 2 | 9 | 10 | |||||
| 4 | , | 0 | 0 | 3 | 0 | 0 | |
| - | 0 | , | 0 | 3 | 6 | 8 | 3 |
| , | 1 | 7 |
Because the upper digit (2) in the thousandths column is too small to get a positive difference, borrow 1 from the number to the left (4.00) which becomes (3.99) and get (12).
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths |
| 3 | 9 | 9 | 12 | ||||
| 2 | 9 | 10 | |||||
| 4 | , | 0 | 0 | 3 | 0 | 0 | |
| - | 0 | , | 0 | 3 | 6 | 8 | 3 |
| , | 1 | 7 |
Subtract the numbers in the thousandths column from the top number:
12-6=6
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths |
| 3 | 9 | 9 | 12 | ||||
| 2 | 9 | 10 | |||||
| 4 | , | 0 | 0 | 3 | 0 | 0 | |
| - | 0 | , | 0 | 3 | 6 | 8 | 3 |
| , | 6 | 1 | 7 |
Subtract the numbers in the hundredths column from the top number:
9-3=6
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths |
| 3 | 9 | 9 | 12 | ||||
| 2 | 9 | 10 | |||||
| 4 | , | 0 | 0 | 3 | 0 | 0 | |
| - | 0 | , | 0 | 3 | 6 | 8 | 3 |
| , | 6 | 6 | 1 | 7 |
Subtract the numbers in the tenths column from the top number:
9-0=9
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths |
| 3 | 9 | 9 | 12 | ||||
| 2 | 9 | 10 | |||||
| 4 | , | 0 | 0 | 3 | 0 | 0 | |
| - | 0 | , | 0 | 3 | 6 | 8 | 3 |
| , | 9 | 6 | 6 | 1 | 7 |
Subtract the numbers in the ones column from the top number:
3-0=3
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths |
| 3 | 9 | 9 | 12 | ||||
| 2 | 9 | 10 | |||||
| 4 | , | 0 | 0 | 3 | 0 | 0 | |
| - | 0 | , | 0 | 3 | 6 | 8 | 3 |
| 3 | , | 9 | 6 | 6 | 1 | 7 |
The solution is: 3,96617
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