Xiao Li came back from a business trip today and found that the calendar had not been turned over for several days, so he turned over 10 sheets at a time. The sum of the date numbers of these 10 days is 125. What is the date of Xiao Li's business trip.
小李今天出差归来，发现日历有好几天没有翻了，就一次翻了10张，这10天的日期数字之和是125，小李是多少号去出差的．
<gadget id="calculator">125 - 1 - 2 - 3 - 4</gadget>
<output>115</output>

<gadget id="calculator">5 + 4 + 3 + 2 + 1 + 115</gadget>
<output>130</output>

<gadget id="calculator">1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1</gadget>
<output>10</output>

<gadget id="calculator">130 / 10</gadget>
<output>13</output>

<gadget id="calculator">13 - 5</gadget>
<output>8</output>

<result>8</result>