The average height of the students in the class is 1.3m, Xiaoming is 1.52m, recorded as +0.22m, and Xiaoling is 1.26m, how much should be recorded.
全班学生的平均身高为1.3m，小明身高1.52m，记作+0.22m，小玲身高1.26m，应记作多少．
<gadget id="calculator">1.3 - 1.26</gadget>
<output>0.04</output>

<result>0.04</result>