The decimal point of a decimal is moved one place to the right, which is 2.52 more than the original number. What is the number?
一个小数的小数点向右移动一位，比原数多2.52，此数为多少．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">2.52 / 9</gadget>
<output>0.28</output>

<result>0.28</result>