The side length of a square floor tile is 3 decimeters, and Xiao Ming used 600 such floor tiles for decoration. How many square meters is the floor tiles of Xiao Ming's house?
一块正方形地砖的边长是3分米，小明家装修用了这样的地砖600块．小明家铺地砖的面积是多少平方米？
<gadget id="calculator">600 / 100</gadget>
<output>6</output>

<gadget id="calculator">3 * 3 * 6</gadget>
<output>54</output>

<result>54</result>