Xiao Ming ran 3 laps around a rectangular playground with a length of 48m and a width of 25m. How many meters did he run in total?
小明围着一个长48m，宽25m的长方形操场跑了3圈，他一共跑了多少米？
<gadget id="calculator">48 + 25</gadget>
<output>73</output>

<gadget id="calculator">73 * 2 * 3</gadget>
<output>438</output>

<result>438</result>