The sum of the lengths of all the sides of the cuboid wooden box used for selling rice in the grain store is 10.4 meters. The length of the wooden box is 1.2 meters, and the width is 0.6 meters. How many meters is the height of this wooden box?
粮店售米用的长方体木箱所有棱长的和是10.4米，木箱的长是1.2米，宽是0.6米，这个木箱的高是多少米？
<gadget id="calculator">10.4 / 4</gadget>
<output>2.6</output>

<gadget id="calculator">1.2 + 0.6</gadget>
<output>1.8</output>

<gadget id="calculator">2.6 - 1.8</gadget>
<output>0.8</output>

<result>0.8</result>