There are 10 questions in a math competition. The scoring standard is: 10 points for each correct question, and 4 points deducted for wrong answers. Xiaoliang did it all and scored a total of 72 points. How many questions did he get right?
一次数学竞赛共有10题，评分标准是：每做对一题得10分，做错或不做倒扣4分．晓亮全做了，共得了72分．他做对了几题？
<gadget id="calculator">10 * 10</gadget>
<output>100</output>

<gadget id="calculator">100 - 72</gadget>
<output>28</output>

<gadget id="calculator">10 + 4</gadget>
<output>14</output>

<gadget id="calculator">28 / 14</gadget>
<output>2</output>

<gadget id="calculator">10 - 2</gadget>
<output>8</output>

<result>8</result>