The area of a classroom is 50m**2, what is one millionth of it in cm**2.
一间教室的面积为50m**2，它的百万分之一是多少cm**2．
<gadget id="calculator">1 / 1_000_000</gadget>
<output>1/1_000_000 = around 0.000001</output>

<gadget id="calculator">50 * 10_000 * (1/1_000_000)</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>