The PE teacher bought 5 boxes of table tennis balls, each box has 12 tubes, and each tube has 12 tubes. How many table tennis balls did the PE teacher buy in total?
体育老师买了5箱乒乓球，每箱有12筒，每筒12个，体育老师一共买了多少个乒乓球？
<gadget id="calculator">12 * 5 * 12</gadget>
<output>720</output>

<result>720</result>