I was hoping someone could/would take the time to tell me if a tax & exchange calculator can be used as a SIMPLE everday calculator. I have this dinosaur of a calculator that can print tap, YAY. But it's confusing. If I want to subtract something, I have to enter the first number then hit the + tab. then I enter the number to be subtracted and hit the - tab at that time. I can't even hit the = tab without something weird happening. There are Several switches at the top of the calculator and I have no idea what they are for. I have tried setting them to different setting with no luck. It has things like "memory, conversion, separate switch shows f, cut, up, 5/4, and another switch shows 6,4,3,2,1,0,x,+. Is this some kind of foreign language that you need a college degree for? Sorry for posting this on this computer website but web searches have been ineffective.