Xiaoqiang took the five subjects of Chinese, Mathematics, English, History, and Natural Sciences. The average score was 90, not counting the math score. Adding the math score, the average score is 92 points. What is Xiaoqiang's math score?
小强考了语文、数学、英语、历史、自然五门功课，数学成绩不算在内，平均成绩是90分．把数学成绩加上去，平均成绩是92分．小强的数学成绩是多少分．
<gadget id="calculator">92 * 5</gadget>
<output>460</output>

<gadget id="calculator">90 * 4</gadget>
<output>360</output>

<gadget id="calculator">460 - 360</gadget>
<output>100</output>

<result>100</result>