Mingming goes to school, starts from home, walks 200 meters first, and finds that class will start in 5 minutes, so he runs to school at a speed of 100 meters per minute, and arrives at school on time, how far is Mingming's home from school?
明明上学，从家里出发，先走了200米，发现再过5分钟就上课了，于是以每分钟100米的速度跑步赶往学校，刚好准时到校，明明家离学校有多远？
<gadget id="calculator">5 * 100</gadget>
<output>500</output>

<gadget id="calculator">200 + 500</gadget>
<output>700</output>

<result>700</result>