A canal is 980 meters long. It has been repaired for 3 days, and there are 656 meters left. How many meters are repaired per day on average?
一条水渠全长980米，已经修了3天，还剩656米，平均每天修多少米？
<gadget id="calculator">980 - 656</gadget>
<output>324</output>

<gadget id="calculator">324 / 3</gadget>
<output>108</output>

<result>108</result>