The school bought 8 boxes of books, 40 books in each box, and distributed them to 5 grades on average. How many books are distributed to each grade?
学校买来8箱图书，每箱40本，平均分给5个年级，每个年级分多少本？
<gadget id="calculator">8 / 5</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">40 * (8/5)</gadget>
<output>64</output>

<result>64</result>