After the decimal point of a decimal is moved one place to the right, the original number is increased by 23.76. What is the original number?
一个小数的小数点向右移一位后，比原数增加了23.76，原数是多少．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">23.76 / 9</gadget>
<output>2.64</output>

<result>2.64</result>