There are two buildings in a school, the length of the building bases is 48 meters, the base width of building A is 25 meters, and the base width of building B is 12 meters. How many square meters is the floor area of building B less than that of building A? (two ways to answer)
某学校有两幢楼房，楼房基地的长都是48米，其中甲楼房的基地宽25米，乙楼房的基地宽12米．乙楼房的占地面积比甲楼房的占地面积少多少平方米？(两种方法解答)
<gadget id="calculator">48 * 25</gadget>
<output>1_200</output>

<gadget id="calculator">48 * 12</gadget>
<output>576</output>

<gadget id="calculator">1_200 - 576</gadget>
<output>624</output>

<result>624</result>