The height of American citizen Johnson is 1.85 meters, and the average height of American men is 177.8 cm. How much taller is Johnson than the average American man?
美国公民约翰逊的身高是1.85米，美国男子的平均身高是177.8厘米．约翰逊的身高比美国男子的平均身高高多少？
<gadget id="calculator">177.8 / 100</gadget>
<output>1.778</output>

<gadget id="calculator">1.85 - 1.778</gadget>
<output>0.072</output>

<result>0.072</result>