A rectangular playground is 300 meters long and 80 meters wide. Xiao Ming runs 2 laps every day. How many meters did he run in total?
一个长方形操场，长是300米，宽80米，小明每天跑2圈，他一共跑了多少米？
<gadget id="calculator">300 + 80</gadget>
<output>380</output>

<gadget id="calculator">380 * 2 * 2</gadget>
<output>1_520</output>

<result>1_520</result>