Intellectual Paradise: A room is 6 meters long and 4 meters wide. How many square floor tiles are needed to pave the floor with a side length of 2 decimeters?
智力乐园：一个房间长6米，宽4米，用边长是2分米的正方形地砖铺地，需要多少块？
<gadget id="calculator">2 / 10</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) * (1/5)</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">4 / (1/25)</gadget>
<output>100</output>

<gadget id="calculator">6 * 100</gadget>
<output>600</output>

<result>600</result>