Move the decimal point of a decimal one place to the right, and the new number is 33.3 larger than the original number. What is the original number?
把一个小数的小数点向右移动一位，新数比原数大33.3，原来这个小数是多少．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">33.3 / 9</gadget>
<output>3.7</output>

<result>3.7</result>