There are 90 students from Chunguang Primary School participating in the mathematics competition, with an average score of 73 points, of which the average score of boys is 70 points, and the average score of girls is 80 points. How many more boys than girls?
春光小学有90人参加数学竞赛，平均得分73分，其中男生平均分70分，女生平均分80分，男生比女生多多少人．
<gadget id="calculator">80 * 90</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>