A canal is 980 meters long. It has been repaired for 4 days, and there are 568 meters left to be repaired. How many meters are repaired per day on average?
一条水渠全长980米，已经修了4天，还剩568米没修，平均每天修多少米？
<gadget id="calculator">980 - 568</gadget>
<output>412</output>

<gadget id="calculator">412 / 4</gadget>
<output>103</output>

<result>103</result>