Solution - Long subtraction
0.21
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths |
| 0 | . | 2 | 4 | |
| - | 0 | . | 0 | 3 |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the hundredths column from the top number:
4-3=1
| Place value | ones | . | tenths | hundredths |
| 0 | . | 2 | 4 | |
| - | 0 | . | 0 | 3 |
| . | 1 |
Subtract the numbers in the tenths column from the top number:
2-0=2
| Place value | ones | . | tenths | hundredths |
| 0 | . | 2 | 4 | |
| - | 0 | . | 0 | 3 |
| . | 2 | 1 |
Subtract the numbers in the ones column from the top number:
0-0=0
| Place value | ones | . | tenths | hundredths |
| 0 | . | 2 | 4 | |
| - | 0 | . | 0 | 3 |
| 0 | . | 2 | 1 |
The solution is: 0.21
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