"DenDz" wrote:

> I am attempting to create a mathamatical computation between two cells and
> then copy and paste it. Lets say I have a date (1 Jun 06) in A1 and in the
> "B" column, I have a minus number of days (example: -120, -90, -60, etc).
> The math computation would look like this: =SUM(A1+B4) in column "C". This
> would subtract the the number of days in B4 from the date of 1 Jun. If the
> number in B4 were -5, then the date would equate to 27 May 06 in C-4. That
> portion of this problem works. What doesn't work is if I copy the cell down
> to C-5, it always changes the date in A1 which is my constant. How do I
> stop A1 from automatically populating as A2 when I do the paste into C-5?

Select Cell C1. Click on A1 in the formula bar and then press F4. The A1
should turn to $A$1. This turns the cell reference to absolute and it stays
as it is when you copy down.

HTH