The school conducted a physical examination for the students, and it was found that Zhang Qiang's height was 1.2 meters, and Liu Song's height was 1.1 meters. How many meters taller is Zhang Qiang than Liu Song?
学校为同学们体检，测得张强的身高是1.2米，刘松的身高是1.1米．张强比刘松高多少米？
<gadget id="calculator">1.2 - 1.1</gadget>
<output>0.1</output>

<result>0.1</result>