The mother's weight is 62 kg, which is 4 kg more than twice Xiao Gang's weight. How many kg does Xiao Gang weigh?
妈妈的体重是62千克，比小刚的体重的2倍多4千克，小刚的体重是多少千克？
<gadget id="calculator">62 - 4</gadget>
<output>58</output>

<gadget id="calculator">58 / 2</gadget>
<output>29</output>

<result>29</result>