The southward position of the school is recorded as positive, and the northward position is recorded as negative. If Xiaoming's position is "+400 meters" and Xiaoli's position is recorded as "-300 meters", then how many meters are there between them.
学校向南的位置记为正，向北的位置记为负，如果小明的位置为"+400米"，小丽的位置记为"-300米"，则他俩相距多少米．
<gadget id="calculator">400 - (-300)</gadget>
<output>700</output>

<result>700</result>