Xiaohong's house, Xiaoli's house and the school are exactly in a straight line. Xiaohong's house is 480 meters away from the school, and Xiaoming's house is 345 meters away from the school. How many meters is the distance between Xiaohong's house and Xiaoming's house? (Think of several situations)
小红家、小丽家与学校正好在一条直线上，小红家离学校480米，小明家离学校345米，小红家和小明家相距多少米．(想一想有几种情况)
<gadget id="calculator">480 + 345</gadget>
<output>825</output>

<result>825</result>