Guangming Primary School has to distribute 640 extra-curricular books to 8 classes in the third grade. How many books can each class get on average?
光明小学要把640本课外书分给三年级8个班，平均每个班能分到多少本？
<gadget id="calculator">640 / 8</gadget>
<output>80</output>

<result>80</result>