A cornfield is 2000 meters long and 500 meters wide. How many hectares does this cornfield cover?
一块玉米地长2000米，宽500米．这块玉米地占地多少公顷？
<gadget id="calculator">2_000 * 500</gadget>
<output>1_000_000</output>

<gadget id="calculator">1_000_000 / 10_000</gadget>
<output>100</output>

<result>100</result>