There are 9 bookshelves in the school library, each with 300 books. How many books are there in the school library?
学校图书室有9个书架，每个书架上有300本书．学校图书室共有多少本书？
<gadget id="calculator">300 * 9</gadget>
<output>2_700</output>

<result>2_700</result>