How many cubic meters of wood is needed to lay a 2 cm thick wooden floor in a room with an area of 30 square meters?
一个面积为30平方米的房间里铺设2厘米厚的木地板，至少需要木材多少立方米．
<gadget id="calculator">2 / 100</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">30 * (1/50)</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>