Solution - Long subtraction
52.92
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
Place value | tens | ones | . | tenths | hundredths |
5 | 5 | . | 8 | ||
- | 2 | . | 8 | 8 | |
. |
Put zeros in the blank number places:
Place value | tens | ones | . | tenths | hundredths |
5 | 5 | . | 8 | 0 | |
- | 2 | . | 8 | 8 | |
. |
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the hundredths 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 (10).
Place value | tens | ones | . | tenths | hundredths |
7 | 10 | ||||
5 | 5 | . | 8 | 0 | |
- | 2 | . | 8 | 8 | |
. |
Subtract the numbers in the hundredths column from the top number:
10-0-8=2
Place value | tens | ones | . | tenths | hundredths |
7 | 10 | ||||
5 | 5 | . | 8 | 0 | |
- | 2 | . | 8 | 8 | |
. | 2 |
Because the upper digit (7) in the tenths column is too small to get a positive difference, borrow 1 from the digit (5) in the next number place which becomes (4) and get (17).
Place value | tens | ones | . | tenths | hundredths |
4 | 17 | ||||
7 | 10 | ||||
5 | 5 | . | 8 | 0 | |
- | 2 | . | 8 | 8 | |
. | 2 |
Subtract the numbers in the tenths column from the top number:
17-8=9
Place value | tens | ones | . | tenths | hundredths |
4 | 17 | ||||
7 | 10 | ||||
5 | 5 | . | 8 | 0 | |
- | 2 | . | 8 | 8 | |
. | 9 | 2 |
Subtract the numbers in the ones column from the top number:
4-2=2
Place value | tens | ones | . | tenths | hundredths |
4 | 17 | ||||
7 | 10 | ||||
5 | 5 | . | 8 | 0 | |
- | 2 | . | 8 | 8 | |
2 | . | 9 | 2 |
Write 5 in the tens place.
Place value | tens | ones | . | tenths | hundredths |
4 | 17 | ||||
7 | 10 | ||||
5 | 5 | . | 8 | 0 | |
- | 2 | . | 8 | 8 | |
5 | 2 | . | 9 | 2 |
The solution is: 52.92
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