The Yangtze River is the largest river in China, with a total length of 6300 kilometers. The length on a map with a scale of 1:100000000 is . how many cm
长江是中国第一大河，全长6300千米，在比例尺是1：100000000的地图上的长度为．多少cm
<gadget id="calculator">1 / 100_000_000</gadget>
<output>1/100_000_000 = around 0</output>

<gadget id="calculator">6_300 * 100_000 * (1/100_000_000)</gadget>
<output>63/10 = around 6.3</output>

<result>63/10 = around 6.3</result>