The distance between Jinniu and Wuhan is 120km, and the length drawn on a map with a scale of 1:600000 is dm?
金牛与武汉的距离为120km，画在比例尺为1：600000的地图上长度为dm？
<gadget id="calculator">1 / 600_000</gadget>
<output>1/600_000 = around 0.000002</output>

<gadget id="calculator">120 * 10_000 * (1/600_000)</gadget>
<output>2</output>

<result>2</result>