Divide an experimental field of 10 hectares into 2 pieces on average, what is the area of each piece in square meters?
把一块10公顷的实验田平均分成2块，每块地的面积是多少平方米．
<gadget id="calculator">10 * 10_000</gadget>
<output>100_000</output>

<gadget id="calculator">100_000 / 2</gadget>
<output>50_000</output>

<result>50_000</result>