Xiaoqiang's final exam goal is to achieve an average score of 90 in Chinese, Mathematics, and English. Now the score is 84 in Chinese and 92 in English. If Xiaoqiang wants to achieve his goal, what score should he score in mathematics?
小强的期终考试目标是语、数、英三科的平均分达到90分．现在语文84分，英语92分，如果小强要使自已达到目标，那么数学应至少得多少分？
<gadget id="calculator">90 * 3</gadget>
<output>270</output>

<gadget id="calculator">270 - 84 - 92</gadget>
<output>94</output>

<result>94</result>