A car transports 290 boxes of bread, and after delivering them to 7 retail stores, there are 10 boxes left. How many boxes are delivered to each retail store on average?
一辆汽车运290箱面包，送给7个零售店后，还剩10箱，平均每个零售店送几箱？
<gadget id="calculator">290 - 10</gadget>
<output>280</output>

<gadget id="calculator">280 / 7</gadget>
<output>40</output>

<result>40</result>