hi does anyone know good sites that tell you how to do binary hex and covertions and hexadecial and binary additions and subtractions basicly everything to do with base numbers or does anyone know a good method i have the basic idea but not quite sure

 

My Linux box has a calculator accessory that will do those conversions and math in all the common bases. Windows might also but I haven't used theirs.

Regards
cww

 

> Start > Programs > Accessories > Calculator > View > Scientific (Windows)

 

Check:
http://www.martindalecenter.com/Calculators4A_1_ACoi.html#ELEC-BASE