Xiaohua's average score in the three subjects of Chinese, Mathematics, and Natural Sciences last semester was 91 points. How many points should he take in the English test to achieve an average score of 93 points in the four subjects?
小华上学期语文、数学、自然三科的平均成绩是91分，他英语应考多少分，四科的平均成绩才能达到93分．
<gadget id="calculator">93 * 4</gadget>
<output>372</output>

<gadget id="calculator">91 * 3</gadget>
<output>273</output>

<gadget id="calculator">372 - 273</gadget>
<output>99</output>

<result>99</result>