The conference room of Yucai Middle School is 25 meters long and 12 meters wide. If 4 floor tiles are used per square meter, how many such floor tiles will be used to pave the floor of this meeting room?
育才中学的会议室长是25米，宽是12米．如果每平方米用4块地砖，铺这个会议室的地面要用多少块这样的地砖？
<gadget id="calculator">25 * 12</gadget>
<output>300</output>

<gadget id="calculator">300 * 4</gadget>
<output>1_200</output>

<result>1_200</result>