Solution - Long subtraction
6.83
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
Place value | ones | . | tenths | hundredths |
9 | . | 7 | 9 | |
- | 2 | . | 9 | 6 |
. |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the hundredths column from the top number:
9-6=3
Place value | ones | . | tenths | hundredths |
9 | . | 7 | 9 | |
- | 2 | . | 9 | 6 |
. | 3 |
Because the upper digit (7) in the tenths column is too small to get a positive difference, borrow 1 from the digit (9) in the next number place which becomes (8) and get (17).
Place value | ones | . | tenths | hundredths |
8 | 17 | |||
9 | . | 7 | 9 | |
- | 2 | . | 9 | 6 |
. | 3 |
Subtract the numbers in the tenths column from the top number:
17-9=8
Place value | ones | . | tenths | hundredths |
8 | 17 | |||
9 | . | 7 | 9 | |
- | 2 | . | 9 | 6 |
. | 8 | 3 |
Subtract the numbers in the ones column from the top number:
8-2=6
Place value | ones | . | tenths | hundredths |
8 | 17 | |||
9 | . | 7 | 9 | |
- | 2 | . | 9 | 6 |
6 | . | 8 | 3 |
The solution is: 6.83
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