It is known that the average of 9 numbers is 65. After removing one number, the average of the remaining numbers is 62. What is the removed number?
已知9个数的平均数是65，去掉一个数后，余下的数的平均数是62，去掉的数是多少．
<gadget id="calculator">65 * 9</gadget>
<output>585</output>

<gadget id="calculator">62 * 8</gadget>
<output>496</output>

<gadget id="calculator">585 - 496</gadget>
<output>89</output>

<result>89</result>