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 | millionths | ten millionths | hundred millionths |
| 0 | , | 0 | 1 | 9 | ||||||
| - | 0 | , | 0 | 0 | 0 | 0 | 0 | 6 | 3 | 1 |
| , |
Put zeros in the blank number places:
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
| 0 | , | 0 | 1 | 9 | 0 | 0 | 0 | 0 | 0 | |
| - | 0 | , | 0 | 0 | 0 | 0 | 0 | 6 | 3 | 1 |
| , |
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the hundred millionths column is too small to get a positive difference, borrow 1 from the number to the left (90.000) which becomes (89.999) and get (10).
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
| 8 | 9 | 9 | 9 | 9 | 10 | |||||
| 0 | , | 0 | 1 | 9 | 0 | 0 | 0 | 0 | 0 | |
| - | 0 | , | 0 | 0 | 0 | 0 | 0 | 6 | 3 | 1 |
| , |
Subtract the numbers in the hundred millionths column from the top number:
10-0-1=9
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
| 8 | 9 | 9 | 9 | 9 | 10 | |||||
| 0 | , | 0 | 1 | 9 | 0 | 0 | 0 | 0 | 0 | |
| - | 0 | , | 0 | 0 | 0 | 0 | 0 | 6 | 3 | 1 |
| , | 9 |
Subtract the numbers in the ten millionths column from the top number:
9-3=6
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
| 8 | 9 | 9 | 9 | 9 | 10 | |||||
| 0 | , | 0 | 1 | 9 | 0 | 0 | 0 | 0 | 0 | |
| - | 0 | , | 0 | 0 | 0 | 0 | 0 | 6 | 3 | 1 |
| , | 6 | 9 |
Subtract the numbers in the millionths column from the top number:
9-6=3
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
| 8 | 9 | 9 | 9 | 9 | 10 | |||||
| 0 | , | 0 | 1 | 9 | 0 | 0 | 0 | 0 | 0 | |
| - | 0 | , | 0 | 0 | 0 | 0 | 0 | 6 | 3 | 1 |
| , | 3 | 6 | 9 |
Subtract the numbers in the hundred thousandths column from the top number:
9-0=9
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
| 8 | 9 | 9 | 9 | 9 | 10 | |||||
| 0 | , | 0 | 1 | 9 | 0 | 0 | 0 | 0 | 0 | |
| - | 0 | , | 0 | 0 | 0 | 0 | 0 | 6 | 3 | 1 |
| , | 9 | 3 | 6 | 9 |
Subtract the numbers in the ten thousandths column from the top number:
9-0=9
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
| 8 | 9 | 9 | 9 | 9 | 10 | |||||
| 0 | , | 0 | 1 | 9 | 0 | 0 | 0 | 0 | 0 | |
| - | 0 | , | 0 | 0 | 0 | 0 | 0 | 6 | 3 | 1 |
| , | 9 | 9 | 3 | 6 | 9 |
Subtract the numbers in the thousandths column from the top number:
8-0=8
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
| 8 | 9 | 9 | 9 | 9 | 10 | |||||
| 0 | , | 0 | 1 | 9 | 0 | 0 | 0 | 0 | 0 | |
| - | 0 | , | 0 | 0 | 0 | 0 | 0 | 6 | 3 | 1 |
| , | 8 | 9 | 9 | 3 | 6 | 9 |
Subtract the numbers in the hundredths column from the top number:
1-0=1
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
| 8 | 9 | 9 | 9 | 9 | 10 | |||||
| 0 | , | 0 | 1 | 9 | 0 | 0 | 0 | 0 | 0 | |
| - | 0 | , | 0 | 0 | 0 | 0 | 0 | 6 | 3 | 1 |
| , | 1 | 8 | 9 | 9 | 3 | 6 | 9 |
Subtract the numbers in the tenths column from the top number:
0-0=0
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
| 8 | 9 | 9 | 9 | 9 | 10 | |||||
| 0 | , | 0 | 1 | 9 | 0 | 0 | 0 | 0 | 0 | |
| - | 0 | , | 0 | 0 | 0 | 0 | 0 | 6 | 3 | 1 |
| , | 0 | 1 | 8 | 9 | 9 | 3 | 6 | 9 |
Subtract the numbers in the ones column from the top number:
0-0=0
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
| 8 | 9 | 9 | 9 | 9 | 10 | |||||
| 0 | , | 0 | 1 | 9 | 0 | 0 | 0 | 0 | 0 | |
| - | 0 | , | 0 | 0 | 0 | 0 | 0 | 6 | 3 | 1 |
| 0 | , | 0 | 1 | 8 | 9 | 9 | 3 | 6 | 9 |
The solution is: 0,01899369
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