The new teaching building of Cuiying Primary School has 3 floors, with 4 classrooms on each floor. If each classroom is equipped with 25 sets of desks. How many sets of desks are needed in total?
崔营小学新建教学楼共3层，每层4间教室．如果每间教室配备25套课桌．一共需要多少套课桌？
<gadget id="calculator">4 * 3 * 25</gadget>
<output>300</output>

<result>300</result>