The average score of 100 students participating in a mathematics competition in a certain county is 63 points, of which the average score of boys is 60 points, and the average score of girls is 70 points. How many more boys than girls?
某县参加数学竞赛的100名学生的平均分是63分，其中男生的平均分是60分，女生的平均分是70分．男生比女生多多少人？
<gadget id="calculator">70 * 100</gadget>
<output>7_000</output>

<gadget id="calculator">100 * 63</gadget>
<output>6_300</output>

<gadget id="calculator">7_000 - 6_300</gadget>
<output>700</output>

<gadget id="calculator">70 - 60</gadget>
<output>10</output>

<gadget id="calculator">700 / 10</gadget>
<output>70</output>

<gadget id="calculator">100 - 70</gadget>
<output>30</output>

<gadget id="calculator">70 - 30</gadget>
<output>40</output>

<result>40</result>