The road repair team builds a 6.5 km long road. It is known that the road repaired on the first day is 1.94 km, which is 0.66 km more than the second day. How many kilometers did you build in two days?
修路队修一条6.5千米长的公路，已知第一天修路1.94千米，比第二天多修0.66千米．两天共修了多少千米？
<gadget id="calculator">1.94 - 0.66</gadget>
<output>1.28</output>

<gadget id="calculator">1.28 + 1.94</gadget>
<output>3.22</output>

<result>3.22</result>