A rectangular conference room is 9 meters long and 8 meters wide. If square floor tiles with a side length of 2 decimeters are used to pave the floor of this conference room, how many such floor tiles are needed.
一间长方形会议室，长9米，宽8米．若用边长是2分米的正方形地砖铺这间会议室地面，需要这样的地砖多少块．
<gadget id="calculator">9 * 8</gadget>
<output>72</output>

<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">72 / (1/25)</gadget>
<output>1_800</output>

<result>1_800</result>