Solution - Long subtraction
26.82
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
Place value | tens | ones | . | tenths | hundredths |
2 | 8 | . | 7 | 2 | |
- | 1 | . | 9 | ||
. |
Put zeros in the blank number places:
Place value | tens | ones | . | tenths | hundredths |
2 | 8 | . | 7 | 2 | |
- | 1 | . | 9 | 0 | |
. |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the hundredths column from the top number:
2-0=2
Place value | tens | ones | . | tenths | hundredths |
2 | 8 | . | 7 | 2 | |
- | 1 | . | 9 | 0 | |
. | 2 |
Because the upper digit (7) in the tenths 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 (17).
Place value | tens | ones | . | tenths | hundredths |
7 | 17 | ||||
2 | 8 | . | 7 | 2 | |
- | 1 | . | 9 | 0 | |
. | 2 |
Subtract the numbers in the tenths column from the top number:
17-9=8
Place value | tens | ones | . | tenths | hundredths |
7 | 17 | ||||
2 | 8 | . | 7 | 2 | |
- | 1 | . | 9 | 0 | |
. | 8 | 2 |
Subtract the numbers in the ones column from the top number:
7-1=6
Place value | tens | ones | . | tenths | hundredths |
7 | 17 | ||||
2 | 8 | . | 7 | 2 | |
- | 1 | . | 9 | 0 | |
6 | . | 8 | 2 |
Write 2 in the tens place.
Place value | tens | ones | . | tenths | hundredths |
7 | 17 | ||||
2 | 8 | . | 7 | 2 | |
- | 1 | . | 9 | 0 | |
2 | 6 | . | 8 | 2 |
The solution is: 26.82
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