After moving the decimal point of a number two places to the right, the number obtained is 57, what is the original number?
把一个数的小数点向右移动两位后，得到的数是57，原来的数是多少．
<gadget id="calculator">57 / 100</gadget>
<output>57/100 = around 0.57</output>

<result>57/100 = around 0.57</result>