Move the decimal point of a decimal number two places to the right, and then one place to the left. The number obtained is 32.15. What is the original number?
把一个小数的小数点先向右移动两位，再向左移动一位，得到的数是32.15，原来的数是多少．
<gadget id="calculator">32.15 / 100</gadget>
<output>0.3215</output>

<gadget id="calculator">0.3215 * 10</gadget>
<output>3.215</output>

<result>3.215</result>