The average score of Xiaoming's Chinese, Mathematics, and English is 91 points, and the average score of Chinese and Mathematics is 90 points. What is his English score?
小明的语文、数学、英语三科成绩的平均分是91分，其中语文、数学的平均成绩是90分，他的英语成绩是多少．
<gadget id="calculator">91 * 3</gadget>
<output>273</output>

<gadget id="calculator">90 * 2</gadget>
<output>180</output>

<gadget id="calculator">273 - 180</gadget>
<output>93</output>

<result>93</result>