The road construction team wants to build a 520-meter-long road. It has been repaired for 4 days, with an average of 55 meters per day. The rest will be completed in 5 days. How many meters per day is the average?
修路队要修一条长520米的公路，已经修了4天，平均每天修55米，余下的要5天修完，平均每天修多少米？
<gadget id="calculator">55 * 4</gadget>
<output>220</output>

<gadget id="calculator">520 - 220</gadget>
<output>300</output>

<gadget id="calculator">300 / 5</gadget>
<output>60</output>

<result>60</result>