Zhang Fei is a classmate who thinks he is careless. When he calculated the distance between two places in a plan with a scale of 1:10000, he measured 1.9cm into 2cm. Please calculate how much deviation there will be in the actual distance ?
张飞是以为比较粗心的同学，他在一个比例尺是1：10000的平面图中，求两地的距离时，将1.9cm量成了2cm，请你计算一下，实际距离中将会出现多大的偏差？
<gadget id="calculator">2 - 1.9</gadget>
<output>0.1</output>

<gadget id="calculator">1 / 10_000</gadget>
<output>1/10_000 = around 0.0001</output>

<gadget id="calculator">0.1 / (1/10_000) / 100</gadget>
<output>10</output>

<result>10</result>