Two road-building teams work together to build a road and finish it in 5 days. Team A has repaired a total of 850 meters, and Team B has repaired a total of 1020 meters. On average, how many meters does Team A repair less than Team B?
两个修路队共同修筑一条路，5天修完．甲队一共修了850米，乙队一共修了1020米．甲队比乙队平均每天少修多少米？
<gadget id="calculator">1_020 - 850</gadget>
<output>170</output>

<gadget id="calculator">170 / 5</gadget>
<output>34</output>

<result>34</result>