There are 90 students from the Experimental Primary School participating in the mathematics competition, with an average score of 73 points. Among them, the average score of boys is 70 points, and the average score of girls is 80 points. How many more boys than girls?
实验小学有90人参加数学竞赛，平均得分是73分，其中男生的平均分为70分，女生的平均分为80分，男生比女生多几人？
<gadget id="calculator">90 * 80</gadget>
<output>7_200</output>

<gadget id="calculator">90 * 73</gadget>
<output>6_570</output>

<gadget id="calculator">7_200 - 6_570</gadget>
<output>630</output>

<gadget id="calculator">80 - 70</gadget>
<output>10</output>

<gadget id="calculator">630 / 10</gadget>
<output>63</output>

<gadget id="calculator">90 - 63</gadget>
<output>27</output>

<gadget id="calculator">63 - 27</gadget>
<output>36</output>

<result>36</result>