After the decimal point of a number is moved one place to the left, the resulting number is 3.06 smaller than the original number. What is the original number?
一个数小数点向左移动一位后，得到的数比原数小3.06，原数是多少．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">3.06 / 9</gadget>
<output>0.34</output>

<gadget id="calculator">0.34 * 10</gadget>
<output>3.4</output>

<result>3.4</result>