Taking Mingming's home as the starting point, going east is positive, and going west is negative. If Mingming walks +350 meters from home, and then walks -350 meters, how many meters is Mingming's distance from home?
以明明家为起点，向东走为正，向西走为负．如果明明从家走了+350米，又走了-350米，这时明明离家的距离是多少米．
<gadget id="calculator">350 + (-350)</gadget>
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