How do I multiply 0.5 by 2?

To multiply 0.5 by 2, you can simply treat 0.5 as a decimal and use regular multiplication.

The process is as follows:

$0.5 \times 2 = 1.0$

So, multiplying 0.5 by 2 gives you the answer of 1.0.

Remember, when multiplying decimals, the number of decimal places in the product is equal to the sum of the decimal places in the factors. In this case, 0.5 has 1 decimal place and 2 has 0 decimal places, giving the product 1.0 a total of 1 decimal place.