Functions
Undo = Control Z
Redo = Control Y
Addition = [=sum (A1:A3)]
Copy = Control C (If a cell has a formula that will be copied too)
Paste = Control V
Constant Value = Put Dollar Sign Infront of Row And Column ($A$1)
Paste Value without formula = Paste special
Width less for Value it will Appear as
Find/Replace = Control F
Bold = Control B
Italic = Control I
Underline = Control U
Print = Control P
Edit Cell = Select Cell press F2
Division = (=A1/B1)
Multiplication = (=A1*B1)
Average = [=AVERAGE(A1:A5)]
Power = (Use ^) 2^2 = 4
Comment on Cell = Right Click + Insert Comment