Zhang Qiang bought 8 CDs and Li Hua bought 10 CDs. The two had to pay a total of 216 yuan. How much is the average for each CD?
张强买8张光盘，李华买10张光盘，两人一共要付216元，平均每张光盘多少元？
<gadget id="calculator">8 + 10</gadget>
<output>18</output>

<gadget id="calculator">216 / 18</gadget>
<output>12</output>

<result>12</result>