The mall sold 208 air conditioners in the first quarter and 404 air conditioners in the second quarter. How many air conditioners were sold on average per month in the first half of the year.
商场第一季度销售空调208台，第二季度销售空调404台．上半年平均每月销售空调多少台．
<gadget id="calculator">208 + 404</gadget>
<output>612</output>

<gadget id="calculator">612 / 6</gadget>
<output>102</output>

<result>102</result>