The experimental primary school library purchased a new batch of books, and the library took out 780 books from these books and distributed them to 6 grades, with 2 classes in each grade. How many books can each class divide on average?
实验小学图书馆新购进一批图书，图书馆从这些图书中拿出780本分给6个年级，每个年级2个班．平均每个班能分多少本图书？
<gadget id="calculator">6 * 2</gadget>
<output>12</output>

<gadget id="calculator">780 / 12</gadget>
<output>65</output>

<result>65</result>