It has been 6 days to build a 900-meter-long road, and there are 540 meters left to be repaired. How many meters does the road-building team repair on average every day?
修一条900米长的公路，已经修了6天，还剩540米没修，修路队平均每天修多少米？
<gadget id="calculator">900 - 540</gadget>
<output>360</output>

<gadget id="calculator">360 / 6</gadget>
<output>60</output>

<result>60</result>