The distance from Beijing to Shanghai is about 1050 kilometers. How many centimeters should be drawn on a map with a scale of 1:3000000?
北京到上海的距离约是1050千米，画在比例尺是1：3000000的地图上，应画多少厘米．
<gadget id="calculator">1 / 3_000_000</gadget>
<output>1/3_000_000 = around 0</output>

<gadget id="calculator">1_050 * 100_000 * (1/3_000_000)</gadget>
<output>35</output>

<result>35</result>