Solution - Long subtraction
53.87
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths | hundredths |
| 5 | 6 | . | 9 | 6 | |
| - | 3 | . | 0 | 9 | |
| . |
2. Subtract the numbers using long subtraction method
Because the upper digit (6) in the hundredths 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 (16).
| Place value | tens | ones | . | tenths | hundredths |
| 8 | 16 | ||||
| 5 | 6 | . | 9 | 6 | |
| - | 3 | . | 0 | 9 | |
| . |
Subtract the numbers in the hundredths column from the top number:
16-9=7
| Place value | tens | ones | . | tenths | hundredths |
| 8 | 16 | ||||
| 5 | 6 | . | 9 | 6 | |
| - | 3 | . | 0 | 9 | |
| . | 7 |
Subtract the numbers in the tenths column from the top number:
8-0=8
| Place value | tens | ones | . | tenths | hundredths |
| 8 | 16 | ||||
| 5 | 6 | . | 9 | 6 | |
| - | 3 | . | 0 | 9 | |
| . | 8 | 7 |
Subtract the numbers in the ones column from the top number:
6-3=3
| Place value | tens | ones | . | tenths | hundredths |
| 8 | 16 | ||||
| 5 | 6 | . | 9 | 6 | |
| - | 3 | . | 0 | 9 | |
| 3 | . | 8 | 7 |
Write 5 in the tens place.
| Place value | tens | ones | . | tenths | hundredths |
| 8 | 16 | ||||
| 5 | 6 | . | 9 | 6 | |
| - | 3 | . | 0 | 9 | |
| 5 | 3 | . | 8 | 7 |
The solution is: 53.87
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