I need a formula for Excel 2010

[MikeADW]

Here's what I have!
I have a column of cells, A1:A10, all of which the values could be either positive or negative and change every so often.
I need sum of the column in cell A11.
I need the sum of cells A1, A3, A5 in cell A12.
I need the difference between cell A11 and A12 in cell A13.
I need the negative numbers to calculated as 0's.

Hope this makes sense!
I'm a rather old man and new to excel!

Thanks
Mike

 

[JoeMo]

Welcome to the Board!
Here's one way:

Excel Workbook
	A
1	9
2	8
3	-8
4	9
5	4
6	-8
7	3
8	-7
9	-2
10	-3
11	33
12	13
13	20
Row3