Teacher Zhang gave 100 multiple-choice questions. The scoring rules are: 1 point for a correct answer, 0.5 points for a wrong answer or no answer. As a result, Gao Qiang scored 88 points. How many questions did he get wrong or didn't do?
张老师出了100道选择题，评分规则是：做对一题得1分，做错或不做扣0.5分．结果高强得了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>