Aggreating set of marks in c# using asp

Question

hi friends,

please help me in aggreating a set of marks .  in c# using asp

	enter  marks
TEXTBOX1	54
TEXTBOX2	65
TEXTBOX3	86
TEXTBOX4	56
TEXTBOX5	25
TEXTBOX6	65
TEXTBOX7	86
total	437
aggreate	54.625

 THE VALUE ENTERED IN TEXTBOX 1 IS 54 ..... AND SO  ON