The road construction team built a total of 1.5 kilometers of roads in the first 3 days of a week, and an average of 0.28 kilometers of roads per day in the last 4 days. How many kilometers of road did the road construction team build this week?
修路队在一周的前3天共修路1.5千米，后4天平均每天修路0.28千米．修路队这一周共修路多少千米？
<gadget id="calculator">0.28 * 4</gadget>
<output>1.12</output>

<gadget id="calculator">1.5 + 1.12</gadget>
<output>2.62</output>

<result>2.62</result>