Eight classes in the third grade of the experimental primary school planted 300 willows and 260 poplars in the tree planting activity. How many trees are planted per class on average?
实验小学三年级8个班级，在植树活动中栽柳树300棵，杨树260棵，平均每班植树多少棵？
<gadget id="calculator">300 + 260</gadget>
<output>560</output>

<gadget id="calculator">560 / 8</gadget>
<output>70</output>

<result>70</result>