A washing machine factory produced an average of 680 washing machines per day in the first 3 days, and a total of 2,220 washing machines in the next 3 days. How many washing machines are produced on average per day?
某洗衣机厂前3天平均每天生产洗衣机680台，后3天共生产洗衣机2220台，平均每天生产洗衣机多少台？
<gadget id="calculator">680 * 3</gadget>
<output>2_040</output>

<gadget id="calculator">2_040 + 2_220</gadget>
<output>4_260</output>

<gadget id="calculator">3 + 3</gadget>
<output>6</output>

<gadget id="calculator">4_260 / 6</gadget>
<output>710</output>

<result>710</result>