The school shipped 8 bookshelves, each with 4 floors, and each floor can hold 125 books. How many books can these bookshelves hold?
学校运来8个书架，每个书架有4层，每层可摆放125本书．这些书架可摆放多少本书？
<gadget id="calculator">125 * 4 * 8</gadget>
<output>4_000</output>

<result>4_000</result>