There is a piece of land with an area of 1 hectare, its length is 200 meters, and its width is how many meters
有一块地，面积是1公顷，它的长是200米，宽是多少米
<gadget id="calculator">10_000 / 200</gadget>
<output>50</output>

<gadget id="calculator">1 * 50</gadget>
<output>50</output>

<result>50</result>