There are 15 questions in the math contest, 10 points are awarded for each correct answer, and 2 points are deducted for each wrong answer. Xiaohua scored 114 points, how many questions did Xiaohua get wrong?
数学竞赛共15题，每答对一题得10分，答错一题倒扣2分．小华得了114分，小华答错了多少题．
<gadget id="calculator">15 * 10</gadget>
<output>150</output>

<gadget id="calculator">150 - 114</gadget>
<output>36</output>

<gadget id="calculator">10 + 2</gadget>
<output>12</output>

<gadget id="calculator">36 / 12</gadget>
<output>3</output>

<result>3</result>