The average weight of Xiao Gang, Xiao Ming and Zhang Qiang is 32 kg, Xiao Gang weighs 30 kg, Xiao Ming weighs 37 kg, how much does Zhang Qiang weigh?
小刚、小明和张强三名同学的平均体重是32千克，小刚重30千克，小明重37千克，张强重多少千克？
<gadget id="calculator">32 * 3</gadget>
<output>96</output>

<gadget id="calculator">96 - 30 - 37</gadget>
<output>29</output>

<result>29</result>