Xiaofang was standing by the railway, and it took 2 minutes for a train to pass by her. It is known that the train is 360 meters long and it takes 6 minutes to cross a bridge at the same speed. How long is the bridge in meters?
小芳站在铁路边，一列火车从她身边开过用了2分钟．已知这列火车长360米，以同样的速度通过一座大桥，用了6分钟，这座大桥长多少米？
<gadget id="calculator">360 / 2</gadget>
<output>180</output>

<gadget id="calculator">180 * 6</gadget>
<output>1_080</output>

<gadget id="calculator">1_080 - 360</gadget>
<output>720</output>

<result>720</result>