Sandy,

Try this instead

=SUM(OFFSET(A$1,5*(ROW(A1)-1),0,5,1))

--

HTH

RP
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"sandy" wrote in message
...
Can't get it Duke. The first sum is incorrect and the next formula down
starts with the next number copied down to (a2, a3, a4). What am I doing
wrong? Thanks for your help. Sandy

"Duke Carey" wrote:

=SUM(OFFSET(A1,5*ROW(A1)-1,0,5,1))

Put that in the first cell where you want the sums to start and copy it
down
the column.

"sandy" wrote:

I have a column with 10,000 rows of numbers. I need to sum a1:a5,
a6:a10,
a11:a15, and so on in groups of five, for all 10,000 rows. How can I
do
this? Thanks much.