Since you didn't post more details or any of the formulas you're using...
Here are a couple guesses:

If you're importing or copying the values, perhaps some of the numbers have
more than 2 decimal places of values. For example 100.004 would appear to be
100.00. The cumulative effect totalling to 0.10

or
You really are off by 0.10 and need to find the variance.

Does that help?
***********
Regards,
Ron

XL2002, WinXP


"Richard" wrote:

I have a spreadsheet set up to ballance my checkbook. It's always off by
exactly .10 cents every time I balance it. Why is that? Thanks in advance.