Xiaoming said: 8 yuan a certificate costs 72 yuan, Xiaohua said: too expensive, buy 6 yuan a piece. How much will that cost?
小明说：8元一张的奖状要花72元，小华说：太贵了，买6元一张的吧．那要花多少钱呢？
<gadget id="calculator">72 / 8</gadget>
<output>9</output>

<gadget id="calculator">9 * 6</gadget>
<output>54</output>

<result>54</result>