Triger one cell in Data grid trigers other same or other Data Grid

Question

hi,

I am working on windows .net (Language c#) appliation where i have displayed summary of data in data grid (Language c#) of various text boxes

i want to change the value of cell and any operation related to it must be trigered

for example:

In a datagrid1

cell 1 takes 3
cell 2 takes 3

and

cell  3 sums      3+3=6 (in data grid view)
cell  4 minus     3-3=0
cel  5  multiply  3*3=9
cell  6 divide     3/3=1

number1	number2	sum	minus	multiply	divide
3	3	6	0	9	1
edit above cell	edit above cell

if i change the values of cell 1 or cell 3 the same must be reflected in the cell 3,4,5,6

I hope this is clear to you and i thank you in reviewing my post and answering me back