Three engineering teams work together to build a highway. Team A has built 4.5 kilometers, team B has repaired 2.5 times as much as team A, and team C has repaired 2.5 kilometers less than the total of teams A and B. How much does team C repair? rice?
三个工程队合修一条公路，甲队修了4.5千米，乙队修的是甲队的2.5倍，丙队修的比甲、乙两队修的总数少2.5千米，丙队修多少千米？
<gadget id="calculator">4.5 * 2.5</gadget>
<output>11.25</output>

<gadget id="calculator">4.5 - 2.5</gadget>
<output>2</output>

<gadget id="calculator">11.25 + 2</gadget>
<output>13.25</output>

<result>13.25</result>