There are 25 classrooms in the school, and each classroom has 36 desks. How many desks are there in these classrooms?
学校里有25个教室，每个教室中有36张课桌．这些教室一共有多少张课桌？
<gadget id="calculator">36 * 25</gadget>
<output>900</output>

<result>900</result>