The school's rectangular playground is 75 meters long and 25 meters wide. Xiaoqing ran 2 laps along the sports field, how many meters did she run in total?
学校长方形运动场的长75米，宽25米．小青沿着运动场跑了2圈，一共跑了多少米？
<gadget id="calculator">75 + 25</gadget>
<output>100</output>

<gadget id="calculator">100 * 2 * 2</gadget>
<output>400</output>

<result>400</result>