The school newly purchased 2,400 books, which will be distributed to grades one to six in the whole school. Each grade has 10 classes. How many books are allocated to each class on average?
学校新购进2400册图书，要分给全校的一至六年级，每个年级有10个班，平均每班分多少本图书？
<gadget id="calculator">10 * 6</gadget>
<output>60</output>

<gadget id="calculator">2_400 / 60</gadget>
<output>40</output>

<result>40</result>