1. Hexadecimal Conversion
Lesson 5

2. What is Hexadecimal? Represents binary digits 16 base system
Used in computing and maths
One hexadecimal digit represents a nibble, which is half of an octet.

3. Example 16 base-system Always starts off at 0 as this is a value!
Used in computing as FF for example could represent data better than use of binary.
Ease of use for computer is essential!

4. Example cont
As you can see, the system works by you add 1 onto the decimal figure and continue from the last hex number ie 0-9, it is 10 and the last one 15, is 16 in decimal.
Then, the decimal continue until you reach the next ten data set , then a 1 is added onto the hex.

5. Activity
Draw this in on a word document and complete.
Hint: Work out what we just looked at and see if you can work out the set after I displayed on the board!

6. Answer
Note this down as it will help you with hexadecimal conversion!

7. Videos!!
Watch the following videos and see if they help you to do the following.....

8. Exam Question from last year!
This is easy!!!!
AS 6 is in the 16s column, we times 6x 16 =96
WE then add 10 as A in hex is 10 so it would be
= 106

9. Exam Question from last year!
WE take the A away and convert to Binary. We know A=10 in hex so lets do this below

10. Exam Question from last year!
NOW we work out the 6. Again 6x16 = 96

11. Exam Question from last year!
Have a go at this ones yourself!!! We will go through the answers later on.