คำตอบ - Long subtraction
4.1
คำอธิบายทีละขั้นตอน
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths |
| 6 | . | 4 | |
| - | 2 | . | 3 |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the tenths column from the top number:
4-3=1
| Place value | ones | . | tenths |
| 6 | . | 4 | |
| - | 2 | . | 3 |
| . | 1 |
Subtract the numbers in the ones column from the top number:
6-2=4
| Place value | ones | . | tenths |
| 6 | . | 4 | |
| - | 2 | . | 3 |
| 4 | . | 1 |
The solution is: 4.1
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