To build a road, 134.5 kilometers have been repaired, and the rest is 13.6 kilometers less than the repaired one. How many kilometers is the total length of this road?
修一条公路，已经修好了134.5千米，剩下的比修好的少13.6千米，这条公路全长多少千米？
<gadget id="calculator">134.5 - 13.6</gadget>
<output>120.9</output>

<gadget id="calculator">120.9 + 134.5</gadget>
<output>255.4</output>

<result>255.4</result>