For a decimal, if the decimal point is moved one place to the left, the original number will be reduced by 2.88. What is the original number?
一个小数，如果把小数点向左移动一位，比原数减少2.88，原来这个小数是多少．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">2.88 / 9</gadget>
<output>0.32</output>

<gadget id="calculator">0.32 * 10</gadget>
<output>3.2</output>

<result>3.2</result>