The school bought 2 bookshelves, each with 5 floors, and each floor can hold 25 books. How many books can these bookshelves hold in total?
学校买来2个书架，每个书架有5层，每层能放25本书，这些书架一共可以放多少本书？
<gadget id="calculator">25 * 5 * 2</gadget>
<output>250</output>

<result>250</result>