A rectangular flower bed is 30 meters long and 24 meters wide. Xiaohong walked along the flower bed twice, how many meters did she walk in total?
一个长方形花坛长30米，宽24米，小红沿着花坛走2圈，一共走了多少米．
<gadget id="calculator">30 + 24</gadget>
<output>54</output>

<gadget id="calculator">54 * 2 * 2</gadget>
<output>216</output>

<result>216</result>