A highway has been repaired for 305.6 kilometers, which is 125.65 kilometers longer than the one that has not been repaired. How long is this road?
一条公路，已经修好了305.6千米，比没修好的多125.65千米．这条公路有多长？
<gadget id="calculator">305.6 - 125.65</gadget>
<output>179.95</output>

<gadget id="calculator">179.95 + 305.6</gadget>
<output>485.55</output>

<result>485.55</result>