Solution - Long subtraction
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 | hundred thousandths | millionths | ten millionths | hundred millionths |
0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 5 | |
- | 0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 7 |
. |
2. Subtract the numbers using long subtraction method
Because the upper digit (5) in the hundred millionths column is too small to get a positive difference, borrow 1 from the digit (8) in the next number place which becomes (7) and get (15).
Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
7 | 15 | |||||||||
0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 5 | |
- | 0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 7 |
. |
Subtract the numbers in the hundred millionths column from the top number:
15-7=8
Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
7 | 15 | |||||||||
0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 5 | |
- | 0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 7 |
. | 8 |
Subtract the numbers in the ten millionths column from the top number:
7-5=2
Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
7 | 15 | |||||||||
0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 5 | |
- | 0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 7 |
. | 2 | 8 |
Subtract the numbers in the millionths column from the top number:
0-0=0
Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
7 | 15 | |||||||||
0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 5 | |
- | 0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 7 |
. | 0 | 2 | 8 |
Subtract the numbers in the hundred thousandths column from the top number:
0-0=0
Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
7 | 15 | |||||||||
0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 5 | |
- | 0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 7 |
. | 0 | 0 | 2 | 8 |
Subtract the numbers in the ten thousandths column from the top number:
0-0=0
Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
7 | 15 | |||||||||
0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 5 | |
- | 0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 7 |
. | 0 | 0 | 0 | 2 | 8 |
Subtract the numbers in the thousandths column from the top number:
0-0=0
Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
7 | 15 | |||||||||
0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 5 | |
- | 0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 7 |
. | 0 | 0 | 0 | 0 | 2 | 8 |
Subtract the numbers in the hundredths column from the top number:
0-0=0
Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths |
7 | 15 | |||||||||
0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 5 | |
- | 0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 7 |
. | 0 | 0 | 0 | 0 | 0 | 2 | 8 |
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 |
7 | 15 | |||||||||
0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 5 | |
- | 0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 7 |
. | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 8 |
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 |
7 | 15 | |||||||||
0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 5 | |
- | 0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 7 |
0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 8 |
The solution is: 0.00000028
How did we do?
Please leave us feedback.Why learn this
Why learn this