There are 430 boys in the school, and 90 fewer girls than boys. How many students are there in the whole school?
全校男生有430名，女生比男生少90名，全校共有多少学生？
<gadget id="calculator">430 - 90</gadget>
<output>340</output>

<gadget id="calculator">340 + 430</gadget>
<output>770</output>

<result>770</result>