Subtracting Hexidecimal

[TexFlex]

Hello everyone,

I hope I am in the right forum.

Could someone please give me the rules for subtracting hexidecimals?

Thank you.

 

[Salem]

They're the same as for subtracting numbers in any other base.



--
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.

 

[TexFlex]

Thank you for the reply. Now I realize I maybe having a little trouble with hex. Do you know of a website that I could go to to strengthen my knowledge in hex.

Thank you

 

[OlafBogus]

As Salem says arithmetic in hexadecimal is the same as in decimal.
Decimal is base 10, there are 10 symbols 0,1,2,3,4,5,6,7,8,9.
10 in decimal is 1 ten and 0 units, 11 is 1 ten and 1 unit etc…
Hexadecimal is exactly the same except its base is 16, there are 16 symbols 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F (A-F representing the numbers 10 – 15)
10 in hex is 1 sixteen and 0 units, B in hex is 0 sixteen and 11 units, 2E in hex is 2 sixteen and 14 units.

http://www.geocities.com/thestarman3/asm/hexawhat.html

 

[TexFlex]

Thank you OlafBogus,

Now I clearly understand how hex works.