More Digits forBase 16 - Hexadecimal

Base 2 digits: 0,1

Base 8 digits: 0,1,2,…,6,7

Base 10 digits: 0,1,2,…,8,9

Base 16 digits:0,1,2,…,8,9,A,B,…,E,F

A is a digit with value 10

B is a digit with value 11

C is a digit with value 12

D is a digit with value 13

E is a digit with value 14

F is a digit with value 15

F + 1 = 10 base 16

D + E = 1B base 16

C - 7 = 5 base 16

F - E = 1 base 16