The school organized students to collect mineral water bottles in their spare time. The third grade collected 350 bottles on the first day, 180 bottles in the morning on the second day, 220 bottles in the afternoon, and 300 bottles on the third day. Mineral water bottles?
学校组织学生利用课余时间收集矿泉水瓶，三年级第一天收集了350个，第二天上午收集了180个，下午收集了220个，第三天收集了300个，三年级平均每天收集多少个矿泉水瓶？
<gadget id="calculator">180 + 220 + 350 + 300</gadget>
<output>1_050</output>

<gadget id="calculator">1_050 / 3</gadget>
<output>350</output>

<result>350</result>