The average score of Xiaoqiang's Chinese, Mathematics, and English subjects in the final exam is 85 points, 80 points for known Chinese, 83 points for English, how much is the score for Mathematics.
小强期末考试语文、数学、英语三科的平均分是85分，已知语文80分，英语83分，么数学多少分．
<gadget id="calculator">85 * 3</gadget>
<output>255</output>

<gadget id="calculator">255 - 80 - 83</gadget>
<output>92</output>

<result>92</result>