The selling price of an iron pot is 65.64 yuan, what is the difference between the numbers represented by the two "6" in the decimal 65.64.
一只铁锅的售价是65.64元，小数65.64中的两个"6"所表示的数相差多少．
<gadget id="calculator">60 - 0.6</gadget>
<output>59.4</output>

<result>59.4</result>