A rectangular playground is 100 meters long and its width is 20 meters shorter than its length. Yingying ran three laps around the playground, how many meters did she run?
一个长方形操场长100米，宽比长短20米．莹莹绕操场跑了三圈，她跑了多少米？
<gadget id="calculator">100 - 20</gadget>
<output>80</output>

<gadget id="calculator">80 + 100</gadget>
<output>180</output>

<gadget id="calculator">180 * 2 * 3</gadget>
<output>1_080</output>

<result>1_080</result>