The school is 1200 meters away from the swimming pool. Xiaoqiang and Xiaohua go from the school to the swimming pool. Xiaoqiang walks 100 meters per minute, and Xiaohua walks 80 meters per minute. After Xiaohua walks for 2 minutes, Xiaoqiang starts. When Xiaoqiang catches up with Xiaohua How far is it from the swimming pool?
学校离游泳馆1200米，小强和小华由学校到游泳馆，小强每分钟行100米，小华每分钟行80米，当小华走2分钟后，小强才出发，当小强追上小华时，距离游泳馆有多远？
<gadget id="calculator">100 - 80</gadget>
<output>20</output>

<gadget id="calculator">80 / 20</gadget>
<output>4</output>

<gadget id="calculator">2 * 4</gadget>
<output>8</output>

<gadget id="calculator">8 * 100</gadget>
<output>800</output>

<gadget id="calculator">1_200 - 800</gadget>
<output>400</output>

<result>400</result>