Wang Village needs to build an 810-meter-long canal. It has been repaired for 6 days, and there are still 480 meters that have not been repaired. How many meters are repaired per day on average?
王村要修一条长810米的水渠，已经修了6天，还有480米没有修．平均每天修多少米？
<gadget id="calculator">810 - 480</gadget>
<output>330</output>

<gadget id="calculator">330 / 6</gadget>
<output>55</output>

<result>55</result>