Five Star Home Appliances shipped 670 color TV sets, and carried out promotional activities on May Day. A total of 350 sets were sold, and the remaining 8 days were sold out. How many color TV sets are sold on average every day?
五星家电运来670台彩色电视机，五一节开展促销活动，共售出350台，余下的8天卖完，平均每天卖出多少台彩色电视？
<gadget id="calculator">670 - 350</gadget>
<output>320</output>

<gadget id="calculator">320 / 8</gadget>
<output>40</output>

<result>40</result>