What is the area of a square table with a side length of 80 cm?
一张边长80厘米的方桌，面积是多少平方米．
<gadget id="calculator">80 / 10_000</gadget>
<output>1/125 = around 0.008</output>

<gadget id="calculator">80 * (1/125)</gadget>
<output>16/25 = around 0.64</output>

<result>16/25 = around 0.64</result>