Wang Zhi's scores in the test are as follows: 85 in Chinese, 90 in mathematics, 98 in English, 91 in physics, and 81 in chemistry. What is the average score of these five subjects?
王志在考试中得分如下：语文85，数学90，英语98，物理91，化学81，这五科的平均分是多少．
<gadget id="calculator">85 + 90 + 98 + 91 + 81</gadget>
<output>445</output>

<gadget id="calculator">445 / 5</gadget>
<output>89</output>

<result>89</result>