A room is 6 meters long and 3 meters wide, and the floor is paved with floor tiles with a side length of 3 decimeters. How many bricks are needed in total?
一间房间长6米，宽3米，现用边长为3分米的地砖铺地面，共需多少块砖．
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(3/10) * (3/10)</gadget>
<output>9/100 = around 0.09</output>

<gadget id="calculator">6 / (9/100)</gadget>
<output>200/3 = around 66.666667</output>

<gadget id="calculator">3 * (200/3)</gadget>
<output>200</output>

<result>200</result>