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Solution - Long subtraction
2.18
Other Ways to Solve:
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths |
| 3 | . | 9 | 3 | |
| - | 1 | . | 7 | 5 |
| . |
2. Subtract the numbers using long subtraction method
Because the upper digit (3) 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 (13).
| Place value | ones | . | tenths | hundredths |
| 8 | 13 | |||
| 3 | . | 9 | 3 | |
| - | 1 | . | 7 | 5 |
| . |
Subtract the numbers in the hundredths column from the top number:
13-5=8
| Place value | ones | . | tenths | hundredths |
| 8 | 13 | |||
| 3 | . | 9 | 3 | |
| - | 1 | . | 7 | 5 |
| . | 8 |
Subtract the numbers in the tenths column from the top number:
8-7=1
| Place value | ones | . | tenths | hundredths |
| 8 | 13 | |||
| 3 | . | 9 | 3 | |
| - | 1 | . | 7 | 5 |
| . | 1 | 8 |
Subtract the numbers in the ones column from the top number:
3-1=2
| Place value | ones | . | tenths | hundredths |
| 8 | 13 | |||
| 3 | . | 9 | 3 | |
| - | 1 | . | 7 | 5 |
| 2 | . | 1 | 8 |
The solution is: 2.18
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