The heights of Xiaohong, Xiaogang, and Xiaoli are 132 cm, 138 cm, and 120 cm respectively. What is their average height in cm?
小红、小刚、小丽的身高分别是132厘米、138厘米、120厘米，他们的平均身高是多少厘米？
<gadget id="calculator">132 + 138 + 120</gadget>
<output>390</output>

<gadget id="calculator">390 / 3</gadget>
<output>130</output>

<result>130</result>