A math test, based on 90 points, the teacher recorded the scores of the five students as follows: +2 points, -1 points, +8 points, +6 points, -5 points. Find the average score of the five students.
一次数学考试，以90分为基准，老师将五位同学的成绩分别记录如下：+2分、-1分、+8分、+6分、-5分．求出这五位同学的平均成绩．
<gadget id="calculator">2 - 1</gadget>
<output>1</output>

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

<gadget id="calculator">1 + 8 + 1</gadget>
<output>10</output>

<gadget id="calculator">10 / 5</gadget>
<output>2</output>

<gadget id="calculator">2 + 90</gadget>
<output>92</output>

<result>92</result>