How many cubic decimeters of wood is needed to make 50 cubes with a side length of 2 cm?
要制作50个棱长2厘米的正方体魔方块，至少需要木料多少立方分米？
<gadget id="calculator">50 / 1_000</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">2 * 2 * 2 * (1/20)</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>