Mathematics competition stipulates that 10 points are awarded for a correct answer, and 2 points are deducted for a wrong answer, so how much less points will be awarded for a wrong answer.
数学竞赛规定答对一题得10分，答错一题倒扣2分，那么答错一题要少得多少分．
<gadget id="calculator">10 + 2</gadget>
<output>12</output>

<result>12</result>