In a math competition, there are 20 questions in total. 5 points for a correct question, 1 point deducted for a wrong question, Xiaohong scored 88 points, how many questions did she get wrong.
在一次数学比赛中，共20道题．做对一道题得5分，错一道题倒扣1分，小红得了88分，她错了多少道题．
<gadget id="calculator">5 * 20</gadget>
<output>100</output>

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

<gadget id="calculator">1 + 5</gadget>
<output>6</output>

<gadget id="calculator">12 / 6</gadget>
<output>2</output>

<result>2</result>