Xiaoqiang set off from home to the library. Walking 50 meters per minute, and 180 meters away from the library in 12 minutes, how many meters is the total distance from Xiaoqiang's house to the library?
小强从家出发到图书馆．每分钟走50米，12分钟后离图书馆还有180米，小强家到图书馆一共有多少米？
<gadget id="calculator">50 * 12</gadget>
<output>600</output>

<gadget id="calculator">600 + 180</gadget>
<output>780</output>

<result>780</result>