HeX

Hi dudes,
I start learning HeX. I found book and a nice online toutorial. So it's this right ?

0-00-0
1-01-1
2-10-2
3-11-3
4-100-4
5-101-5
6-110-6
7-111-7
8-1000-8
9-1001-9
10-1010-A
11-1011-B
12-1100-C
13-1101-D
14-1111-E
15-10000-F

i have learned the basic (i think) i can collect, draw, multiply and divide.
But how will this help me to make something in HeX i can't understand: i understand one number and then what ??

This is binary, not hex.

i think you're wrong anthrax o-o , i thought binary consisted of 0 and 1, i have a binary converter lol it only convers to 0 & 1