Remove the decimal point of a one-digit decimal, which is 28.8 larger than the original number, what is the decimal
把一个一位小数的小数点去掉，比原数大28.8，这个小数是多少
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">28.8 / 9</gadget>
<output>3.2</output>

<result>3.2</result>