Xiaoqiao walks 250 meters per minute on average from home to the Children's Palace. After walking for 12 minutes, she is still 170 meters away from the Children's Palace. How far is her home from the Children's Palace?
小巧从家去少年宫，平均每分钟走250米，走了12分钟后，离少年宫还有170米，她家离少年宫有多远？
<gadget id="calculator">250 * 12</gadget>
<output>3_000</output>

<gadget id="calculator">3_000 + 170</gadget>
<output>3_170</output>

<result>3_170</result>