There are 800 students in a school, including 480 boys, how many more boys than girls?
某校有学生800人，其中男生480人，男生比女生多几人？
<gadget id="calculator">800 - 480</gadget>
<output>320</output>

<gadget id="calculator">480 - 320</gadget>
<output>160</output>

<result>160</result>