Mom wants to buy cloth to make an electric stove cover shaped like a cube (the bottom surface is not made). If the side length of the electric stove cover is 80 cm, how many square meters of cloth do you need to buy at least (neglecting the joints)?
妈妈要买布做一个形如正方体表面的电炉罩(底面不做)，如果电炉罩的边长是80厘米，至少需要买多少平方米的布(接头处忽略不计)？
<gadget id="calculator">5 / 10_000</gadget>
<output>1/2_000 = around 0.0005</output>

<gadget id="calculator">80 * 80 * (1/2_000)</gadget>
<output>16/5 = around 3.2</output>

<result>16/5 = around 3.2</result>