The average score of Xiaocheng Chinese, Mathematics and English is 95 points, English is 95 points, and Chinese is 90 points. What is his math score?
小成语文数学英语三门功课的平均分为95分，英语95分，语文90分，他的数学成绩是多少分
<gadget id="calculator">95 * 3</gadget>
<output>285</output>

<gadget id="calculator">285 - 95 - 90</gadget>
<output>100</output>

<result>100</result>