If the decimal point of a decimal is moved one place to the right and then two places to the left, the result is how many times the original number.
把一个小数的小数点向右移动一位，再向左移动2位，其结果是原来的多少倍．
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>