There are two ribbons, the first one is 6.2 meters long, the second one is 0.2 meters shorter than twice the first one, how many meters is the second ribbon long?
有两条绸带，第一条长6.2米，第二条比第一条的2倍少0.2米，第二条绸带长多少米？
<gadget id="calculator">6.2 * 2</gadget>
<output>12.4</output>

<gadget id="calculator">12.4 - 0.2</gadget>
<output>12.2</output>

<result>12.2</result>