sum (add) every consecutive N cells in a column

S

smilewithme

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Joined
Mar 8, 2007
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2
Hello,

I have several thousands of numbers in a column. I would like to add every 100 cells and bring the result into column B. Can someone help me with this?

For example if I have numbers in 1000 cells from A1 to A1000. Now, I would like to add each consecutive 100 numbers (like A1:A100, A101:A200, A201:A300 and so on) and put the results in column B.

Please help me with this. Thanks
 

Excel Facts

Copy formula down without changing references
If you have =SUM(F2:F49) in F50; type Alt+' in F51 to copy =SUM(F2:F49) to F51, leaving the formula in edit mode. Change SUM to COUNT.
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B1, copied down:

=SUM(INDEX($A$1:$A$1000,ROWS($B$1:B1)*100-100+1):INDEX($A$1:$A$100,ROWS($B$1:B1)*100))

Hope this helps!
 
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