The road construction team had to repair 3,000 kilometers of roads. They built 639 kilometers on the first day and 865 kilometers on the second day. How many kilometers were repaired in two days?
修路队要修3000千米的路，第一天修了639千米，第二天修了865千米，两天共修了多少千米？
<gadget id="calculator">639 + 865</gadget>
<output>1_504</output>

<result>1_504</result>