Uncle Wang needs to pack 480 table tennis balls, 8 boxes in total, 12 bags in each box. How many per bag on average? (First list the step-by-step calculation solution, then list the comprehensive calculation formula, and finally check)
王叔叔要包装480个乒乓球，一共装了8盒，每盒12袋．平均每袋装多少个？(先列分步算式解答，再列综合算式，最后还要检验)
<gadget id="calculator">480 / 8</gadget>
<output>60</output>

<gadget id="calculator">60 / 12</gadget>
<output>5</output>

<result>5</result>