The average score of Xiaohong's mathematics, Chinese and English in the final exam is 93 points. It is known that the scores of mathematics and Chinese are 98 and 90 respectively. What is Xiaohong's English score?
期末考试小红的数学、语文、英语三科的平均成绩是93分，已知数学、语文的成绩分别是98分和90分，小红的英语成绩是多少分．
<gadget id="calculator">93 * 3</gadget>
<output>279</output>

<gadget id="calculator">279 - 90 - 98</gadget>
<output>91</output>

<result>91</result>