Teacher Zhang gave 100 multiple-choice questions, and the scoring rule is to give 1 point for a correct answer, and deduct 0.5 points for a wrong answer. As a result, Kangkang scored 88 points. How many questions did he get wrong or did not answer?
张老师出了100道选择题、评分规则是做对一题给1分，做错或不做扣0.5分，结果，康康得了88分，他做错或没做的题有多少道．
<gadget id="calculator">1 * 100</gadget>
<output>100</output>

<gadget id="calculator">100 - 88</gadget>
<output>12</output>

<gadget id="calculator">0.5 + 1</gadget>
<output>1.5</output>

<gadget id="calculator">12 / 1.5</gadget>
<output>8</output>

<result>8</result>