A parallelogram wheat field has a base of 200 meters and a height of 100 meters. What is its area in hectares?
一块平行四边形麦地底是200米，高是100米，它的面积是多少公顷？
<gadget id="calculator">1 * 10_000</gadget>
<output>10_000</output>

<gadget id="calculator">100 / 10_000</gadget>
<output>1/100 = around 0.01</output>

<gadget id="calculator">200 * (1/100)</gadget>
<output>2</output>

<result>2</result>