Xiao Ming's family lives in a small alley, and the numbers of each house are arranged consecutively from No. 1. The sum of the numbers of all the houses in the alley minus the number of Xiao Ming's house is 60. What's the number of Xiao Ming's house?
小明家住在一条小胡同里，各家号码从1号连着排下去，全胡同所有家的号码之和再减去小明家号码后是60．小明家是多少号．
<gadget id="calculator">1 + 10</gadget>
<output>11</output>

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">11 * 5</gadget>
<output>55</output>

<gadget id="calculator">11 - 60</gadget>
<output>-49</output>

<gadget id="calculator">55 + (-49)</gadget>
<output>6</output>

<result>6</result>