After a decimal is enlarged by 1000 times, the decimal point is moved two places to the left to get 2.05. What is the original decimal?
一个小数扩大1000倍后，小数点再向左移动两位得到2.05，原来的小数是多少．
<gadget id="calculator">100 / 1_000</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">2.05 * (1/10)</gadget>
<output>0.205</output>

<result>0.205</result>