Activity : Hexadecimal
HINT : For hexadecimal you need to learn to count in hex...

0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F  10  11  12  13  14  15  etc...

Each hex digit is a 4-bit binary number, which you can easily work out if you keep in your head the headings...

8 4 2 1
       

For example C would be... 8 + 4 ..in other words the 4-bit binary number 1100

 

[1] Enter your answers in the text boxes and check them...
How would the binary number 01101101 be represented in hexadecimal ?
What binary number is equivalent to the hexadecimal number 75 ?
Convert the hexadecimal number 2A into denary (convert to binary first).
Convert the denary number 25 into hexadecimal (convert to binary first)
A hexadecimal sum - What is 5E + 3 ?

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