If the decimal point of a number is moved one place to the right, the number obtained is 5.4 greater than the original number. What is the number?
一个数的小数点向右移动一位后得到的数比原数大5.4，这个数是多少．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">5.4 / 9</gadget>
<output>0.6</output>

<result>0.6</result>