When the accountant in the financial office settled the account, he found that 890.1 yuan was missing on the account. After checking, he found that the decimal point of a sum of money was wrong.
财务室会计结账时，发现账面上少了890.1元钱，经核对发现把一笔钱的小数点点错了一位，原来这笔钱是多少元．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">890.1 / 9</gadget>
<output>98.9</output>

<gadget id="calculator">98.9 * 10</gadget>
<output>989</output>

<result>989</result>