Base-16 - Hexadecimal
Base-16 is also called hexadecimal. It's commonly used in computer programming, so it's very important to understand. Let's start with counting in hexadecimal to make sure we can apply what we've learned about other bases so far.
Since we are working with base-16, we have 16 digits. So, we have 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, ... and yikes! We've run out of digits, but we still need six more. Perhaps we could use something like a circled 10?
The truth is, we could, but this would be a pain to type. Instead, we simply use letters of the alphabet, starting with A and continuing to F. Here's a table with all the digits of base-16:
Convert the following hexadecimal numbers to binary.
Convert the following binary numbers to hexadecimal.
Convert the following hexadecimal numbers to decimal.
Convert the following decimal numbers to hexadecimal.