The school is going to hold a sports meeting and plans to use 480 colored flags to decorate the venue. This task is assigned to 10 classes, each class has 4 groups, how many colored flags should each group make on average?
学校要开运动会，准备用480面彩旗布置会场，把这个任务交给10个班，每个班有4个小组，平均每个小组要做多少面彩旗？
<gadget id="calculator">4 * 10</gadget>
<output>40</output>

<gadget id="calculator">480 / 40</gadget>
<output>12</output>

<result>12</result>