It is known that the weight of 5 students in Class 1 is: Xiaoqiang 23kg, Xiaoli 21kg, Xiaodong 25kg, Xiaobing 24kg, Xiaohong 22kg, if their average weight is set to 0, what is the weight of Xiaobing ㎏．
已知一1班5名同学的体重是：小强23㎏，小丽21㎏，小冬25㎏，小兵24㎏，小红22㎏，如果把他们的平均体重设为0，则小兵的体重为多少㎏．
<gadget id="calculator">23 + 21 + 25 + 24 + 22</gadget>
<output>115</output>

<gadget id="calculator">115 / 5</gadget>
<output>23</output>

<gadget id="calculator">24 - 23</gadget>
<output>1</output>

<result>1</result>