Solution - Long subtraction
0.574
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths | thousandths |
| 3 | . | 0 | 6 | 5 | |
| - | 2 | . | 4 | 9 | 1 |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the thousandths column from the top number:
5-1=4
| Place value | ones | . | tenths | hundredths | thousandths |
| 3 | . | 0 | 6 | 5 | |
| - | 2 | . | 4 | 9 | 1 |
| . | 4 |
Because the upper digit (6) in the hundredths column is too small to get a positive difference, borrow 1 from the number to the left (3.0) which becomes (2.9) and get (16).
| Place value | ones | . | tenths | hundredths | thousandths |
| 2 | 9 | 16 | |||
| 3 | . | 0 | 6 | 5 | |
| - | 2 | . | 4 | 9 | 1 |
| . | 4 |
Subtract the numbers in the hundredths column from the top number:
16-9=7
| Place value | ones | . | tenths | hundredths | thousandths |
| 2 | 9 | 16 | |||
| 3 | . | 0 | 6 | 5 | |
| - | 2 | . | 4 | 9 | 1 |
| . | 7 | 4 |
Subtract the numbers in the tenths column from the top number:
9-4=5
| Place value | ones | . | tenths | hundredths | thousandths |
| 2 | 9 | 16 | |||
| 3 | . | 0 | 6 | 5 | |
| - | 2 | . | 4 | 9 | 1 |
| . | 5 | 7 | 4 |
Subtract the numbers in the ones column from the top number:
2-2=0
| Place value | ones | . | tenths | hundredths | thousandths |
| 2 | 9 | 16 | |||
| 3 | . | 0 | 6 | 5 | |
| - | 2 | . | 4 | 9 | 1 |
| 0 | . | 5 | 7 | 4 |
The solution is: 0.574
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