A rectangular wheat field is 250 meters long and 80 meters wide. How many hectares does this wheat field have?
一块长方形小麦地，长250米，宽80米，这块小麦地有多少公顷？
<gadget id="calculator">250 * 80</gadget>
<output>20_000</output>

<gadget id="calculator">20_000 / 10_000</gadget>
<output>2</output>

<result>2</result>