comparing miles driven and odometer on 2005 Toyota Prius

MY odometer mathematically indicates I have driven 200 miles but my energy display says 180 miles why is this? Do I need to look into this.

1 answer
Probably not something to worry about. My guess would be that the odometer is what you should believe and go with, and the "energy display" is probably a calculation or extrapolation based on data the engine computer is analyzing.

I'd like to hear a specific answer, if any has one.