Solution - Long subtraction
0.0069
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 0 | . | 0 | 0 | 7 | 8 | |
| - | 0 | . | 0 | 0 | 0 | 9 |
| . |
2. Subtract the numbers using long subtraction method
Because the upper digit (8) in the ten thousandths column is too small to get a positive difference, borrow 1 from the digit (7) in the next number place which becomes (6) and get (18).
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 6 | 18 | |||||
| 0 | . | 0 | 0 | 7 | 8 | |
| - | 0 | . | 0 | 0 | 0 | 9 |
| . |
Subtract the numbers in the ten thousandths column from the top number:
18-9=9
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 6 | 18 | |||||
| 0 | . | 0 | 0 | 7 | 8 | |
| - | 0 | . | 0 | 0 | 0 | 9 |
| . | 9 |
Subtract the numbers in the thousandths column from the top number:
6-0=6
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 6 | 18 | |||||
| 0 | . | 0 | 0 | 7 | 8 | |
| - | 0 | . | 0 | 0 | 0 | 9 |
| . | 6 | 9 |
Subtract the numbers in the hundredths column from the top number:
0-0=0
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 6 | 18 | |||||
| 0 | . | 0 | 0 | 7 | 8 | |
| - | 0 | . | 0 | 0 | 0 | 9 |
| . | 0 | 6 | 9 |
Subtract the numbers in the tenths column from the top number:
0-0=0
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 6 | 18 | |||||
| 0 | . | 0 | 0 | 7 | 8 | |
| - | 0 | . | 0 | 0 | 0 | 9 |
| . | 0 | 0 | 6 | 9 |
Subtract the numbers in the ones column from the top number:
0-0=0
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 6 | 18 | |||||
| 0 | . | 0 | 0 | 7 | 8 | |
| - | 0 | . | 0 | 0 | 0 | 9 |
| 0 | . | 0 | 0 | 6 | 9 |
The solution is: 0.0069
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