Two road construction teams work together to build a road and finish it in 3 days. The first team repaired 120 meters, and the second team repaired 102 meters. On average, how many meters does the first team repair more than the second team every day?
两个修路队共同修一条路，3天修完．第一队修了120米，第二队修了102米．平均每天第一队比第二队多修多少米？
<gadget id="calculator">120 - 102</gadget>
<output>18</output>

<gadget id="calculator">18 / 3</gadget>
<output>6</output>

<result>6</result>