Lin Lin's house is 100 meters east of the school, Lili's house is 50 meters west of the school, how many meters is the distance between Lin Lin's house and Lili's house
林林家在学校东面100米，丽丽家在学校西面50米，林林家与丽丽家相距多少米
<gadget id="calculator">100 + 50</gadget>
<output>150</output>

<result>150</result>