Binary, Octal, and Hexadecimal Arithmetic
We use arithmetic every day to give us the information we need to make decisions. Like us, computers perform arithmetic operations constantly as part of their normal operation, except that computers use binary numbers to perform their calculations incredibly fast.
Binary, octal, and hexadecimal numbers are essentially different representations of numbers, and as such they are not really much different than decimal numbers; they simply have a different number of values per digit. In a similar vein, doing arithmetic with binary, octal, or hexadecimal numbers is not that different from the equivalent operations with decimal numbers. You just have to keep in mind that you are working with powers of 2, 8, or ...
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