In Xiaoming's mid-term exam, he scored 98 in Chinese, 99 in mathematics, and 91 in English. What is Xiaoming's average score in the three subjects?
小明期中考试，语文考了98，数学考了99分，英语考了91分，小明三门功课的平均成绩是多少分？
<gadget id="calculator">98 + 99 + 91</gadget>
<output>288</output>

<gadget id="calculator">288 / 3</gadget>
<output>96</output>

<result>96</result>