What is the area of a square whose side length is 800 meters?
一个边长是800米的正方形土地面积是多少公顷．
<gadget id="calculator">1 * 10_000</gadget>
<output>10_000</output>

<gadget id="calculator">800 / 10_000</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">800 * (2/25)</gadget>
<output>64</output>

<result>64</result>