Move the decimal point of a decimal to the left by two places first, and then move it to the right by one place to get a decimal of 3.08. What is the original decimal?
把一个小数的小数点先向左移动两位，再向右移动一位得到的小数是3.08，原来的小数是多少．
<gadget id="calculator">3.08 * 10</gadget>
<output>30.8</output>

<result>30.8</result>