Xiaohong's house, Xiaoming's house and the school are on the same road. Xiaohong's house is 350 meters away from the school, and Xiaoming's house is 150 meters away from the school. How far is it from Xiaohong's house to Xiaoming's house? (Please write out the formula and write 2 types)
小红家、小明家和学校在同一条路上，小红家离学校350米，小明家离学校150米，求小红家到小明家有多远？(请写出算式，写2种)
<gadget id="calculator">350 + 150</gadget>
<output>500</output>

<result>500</result>