The toy factory produced 720,000 toys in the first half of the year, 120,000 fewer than the second half of the year. How many million fewer toys were produced per month in the first half of the year than in the second half of the year?
玩具厂上半年生产玩具72万件，比下半年少生产12万件，上半年平均每月比下半年少生产玩具多少万件？
<gadget id="calculator">12 / 6</gadget>
<output>2</output>

<result>2</result>