=ROUND(SUM(H1:H100),2)=ROUND(SUM(A101:G101),2) could be one way. I use
round in there because for various reasons (floating point accuracy) you
could have say what looks like 0.2 = 0.2 as a result (and you would expect
TRUE) which was in reality 0.2=0.19999999999 or something similar and
returned FALSE.

http://cpearson.com/excel/rounding.htm

Use conditional formatting to flag the cell bright red if the answer is
FALSE.

--
Regards
Ken....................... Microsoft MVP - Excel
Sys Spec - Win XP Pro / XL 97/00/02/03

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It's easier to beg forgiveness than ask permission :-)
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"Nicole L." wrote in message
...
Is there a way to put a formula in a cell to compare the total of the
cells
above it (the column) and the totals of the data in the cells to the left
of
it (the row) to make sure they match up? I would use this just to make
sure
that I hadn't messed up any of my SUMs throughout the worksheet. Just as a
doublechecking mechanism.

Thanks