Solution - Long subtraction
5.64
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths |
| 8 | ||||
| - | 2 | . | 3 | 6 |
| . |
Put zeros in the blank number places:
| Place value | ones | . | tenths | hundredths |
| 8 | . | 0 | 0 | |
| - | 2 | . | 3 | 6 |
| . |
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 number to the left (8.0) which becomes (7.9) and get (10).
| Place value | ones | . | tenths | hundredths |
| 7 | 9 | 10 | ||
| 8 | . | 0 | 0 | |
| - | 2 | . | 3 | 6 |
| . |
Subtract the numbers in the hundredths column from the top number:
10-0-6=4
| Place value | ones | . | tenths | hundredths |
| 7 | 9 | 10 | ||
| 8 | . | 0 | 0 | |
| - | 2 | . | 3 | 6 |
| . | 4 |
Subtract the numbers in the tenths column from the top number:
9-3=6
| Place value | ones | . | tenths | hundredths |
| 7 | 9 | 10 | ||
| 8 | . | 0 | 0 | |
| - | 2 | . | 3 | 6 |
| . | 6 | 4 |
Subtract the numbers in the ones column from the top number:
7-2=5
| Place value | ones | . | tenths | hundredths |
| 7 | 9 | 10 | ||
| 8 | . | 0 | 0 | |
| - | 2 | . | 3 | 6 |
| 5 | . | 6 | 4 |
The solution is: 5.64
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