Solution - Long subtraction
2.431
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths | thousandths |
| 6 | . | 4 | 3 | 1 | |
| - | 4 | ||||
| . |
Put zeros in the blank number places:
| Place value | ones | . | tenths | hundredths | thousandths |
| 6 | . | 4 | 3 | 1 | |
| - | 4 | . | 0 | 0 | 0 |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the thousandths column from the top number:
1-0=1
| Place value | ones | . | tenths | hundredths | thousandths |
| 6 | . | 4 | 3 | 1 | |
| - | 4 | . | 0 | 0 | 0 |
| . | 1 |
Subtract the numbers in the hundredths column from the top number:
3-0=3
| Place value | ones | . | tenths | hundredths | thousandths |
| 6 | . | 4 | 3 | 1 | |
| - | 4 | . | 0 | 0 | 0 |
| . | 3 | 1 |
Subtract the numbers in the tenths column from the top number:
4-0=4
| Place value | ones | . | tenths | hundredths | thousandths |
| 6 | . | 4 | 3 | 1 | |
| - | 4 | . | 0 | 0 | 0 |
| . | 4 | 3 | 1 |
Subtract the numbers in the ones column from the top number:
6-4=2
| Place value | ones | . | tenths | hundredths | thousandths |
| 6 | . | 4 | 3 | 1 | |
| - | 4 | . | 0 | 0 | 0 |
| 2 | . | 4 | 3 | 1 |
The solution is: 2.431
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