Solution - Long subtraction
91.38
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths | hundredths |
| 9 | 9 | . | 9 | ||
| - | 8 | . | 5 | 2 | |
| . |
Put zeros in the blank number places:
| Place value | tens | ones | . | tenths | hundredths |
| 9 | 9 | . | 9 | 0 | |
| - | 8 | . | 5 | 2 | |
| . |
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 (9) in the next number place which becomes (8) and get (10).
| Place value | tens | ones | . | tenths | hundredths |
| 8 | 10 | ||||
| 9 | 9 | . | 9 | 0 | |
| - | 8 | . | 5 | 2 | |
| . |
Subtract the numbers in the hundredths column from the top number:
10-0-2=8
| Place value | tens | ones | . | tenths | hundredths |
| 8 | 10 | ||||
| 9 | 9 | . | 9 | 0 | |
| - | 8 | . | 5 | 2 | |
| . | 8 |
Subtract the numbers in the tenths column from the top number:
8-5=3
| Place value | tens | ones | . | tenths | hundredths |
| 8 | 10 | ||||
| 9 | 9 | . | 9 | 0 | |
| - | 8 | . | 5 | 2 | |
| . | 3 | 8 |
Subtract the numbers in the ones column from the top number:
9-8=1
| Place value | tens | ones | . | tenths | hundredths |
| 8 | 10 | ||||
| 9 | 9 | . | 9 | 0 | |
| - | 8 | . | 5 | 2 | |
| 1 | . | 3 | 8 |
Write 9 in the tens place.
| Place value | tens | ones | . | tenths | hundredths |
| 8 | 10 | ||||
| 9 | 9 | . | 9 | 0 | |
| - | 8 | . | 5 | 2 | |
| 9 | 1 | . | 3 | 8 |
The solution is: 91.38
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