-------- ONLY FOR NOVICE OF HEXADECIMAL---------
I offer this tutorial to quickly address calulation Hexadecimal
it is useful for calulations : rank hack, ball hack adress and other WITH as an
engine SORA or radical
1 )Launch calculator of windows
OR
IN COmmand (cmd) tape (%SystemRoot%\system32\calc.exe )
2) CLIC on VIEW/AFFICHAGE
3)Select Scientific and Hexadecimal
4)Look and calculation HEX ^^ with ( A --> F)

EXemple Subtract Adress Hex
00F83078
........-04
00F83074
0137A3
30
-4
0137A3
2C
BC-4 = B8
C0- 6 = BA
DONT USE YOUR HEAD XD USE CALCULATOR WINDOWS 
sorry for the pro Hexa but I found it useful !!!