A rectangular flower bed is 6 meters long and 3 meters wide. Xiaojun walked around the flower bed 3 times, how many meters did he walk in total?
一个长方形花坛的长是6米，宽是3米．小军绕着这个花坛走了3圈，一共走了多少米？
<gadget id="calculator">6 + 3</gadget>
<output>9</output>

<gadget id="calculator">9 * 2 * 3</gadget>
<output>54</output>

<result>54</result>