Xiaojian is 1.35 meters tall, Lili is 1.27 meters tall, and Mr. Wang is 0.8 meters shorter than the sum of their heights. How tall is Mr. Wang?
小健身高1.35米，丽丽身高1.27米，王老师身高比两人身高的总和少0.8米，王老师身高多少米？
<gadget id="calculator">1.27 - 0.8</gadget>
<output>0.47</output>

<gadget id="calculator">1.35 + 0.47</gadget>
<output>1.82</output>

<result>1.82</result>