Li Hong's mid-term exam scores are: 89 points in Chinese, 97 points in foreign languages, and 99 points in mathematics. What is the average score of these three subjects?
李红期中考试成绩是：语文89分，外语97分，数学99分，这三科平均成绩是多少分．
<gadget id="calculator">89 + 97 + 99</gadget>
<output>285</output>

<gadget id="calculator">285 / 3</gadget>
<output>95</output>

<result>95</result>