How can I add non-adjacent cells with a formula

[dhodges00]

I have 24 columns. In columns 25 and 26, I want the sum totals of every other
column to its left. In other words, column 25 would show the sum of columns,
1,3,5,7,... and column 26 the sum of columns 2,4,6,8,....

I have manually entered the formula =sum(a1+c1+e1+.....x1). Is there an
easier way?

Thanks in advance

[JulieD]

Hi

to sum the EVEN columns
=SUM(IF(MOD(COLUMN(A1:X1),2)=0,A1:X1,0))

to sum the ODD columns
=SUM(IF(MOD(COLUMN(A1:X1),2)=1,A1:X1,0))

NOTE: these are array formulas so they need to be entered with control &
shift & enter, not just enter.

Cheers
JulieD

"dhodges00" <[email protected]> wrote in message
news:[email protected]...
>I have 24 columns. In columns 25 and 26, I want the sum totals of every
>other
> column to its left. In other words, column 25 would show the sum of
> columns,
> 1,3,5,7,... and column 26 the sum of columns 2,4,6,8,....
>
> I have manually entered the formula =sum(a1+c1+e1+.....x1). Is there an
> easier way?
>
> Thanks in advance

[Aladin Akyurek]

1]

=SUMPRODUCT(--(MOD(COLUMN($A$1:$X$1)-CELL("Col",$A$1)+0,2)=0),$A$1:$X$1)

2]

=SUMPRODUCT(--(MOD(COLUMN($A$1:$X$1)-CELL("Col",$A$1)+1,2)=0),$A$1:$X$1)

dhodges00 wrote:
> I have 24 columns. In columns 25 and 26, I want the sum totals of every other
> column to its left. In other words, column 25 would show the sum of columns,
> 1,3,5,7,... and column 26 the sum of columns 2,4,6,8,....
>
> I have manually entered the formula =sum(a1+c1+e1+.....x1). Is there an
> easier way?
>
> Thanks in advance

[RagDyeR]

For a non-array option, you could try:

Odd columns:
=SUMPRODUCT((MOD(COLUMN(A1:X1)+1,2)=0)*(A1:X1))

Even columns:
=SUMPRODUCT((MOD(COLUMN(A1:X1),2)=0)*(A1:X1))
--

HTH,

RD
==============================================
Please keep all correspondence within the Group, so all may benefit!
==============================================


"JulieD" <[email protected]> wrote in message
news:usNwHMM%[email protected]...
Hi

to sum the EVEN columns
=SUM(IF(MOD(COLUMN(A1:X1),2)=0,A1:X1,0))

to sum the ODD columns
=SUM(IF(MOD(COLUMN(A1:X1),2)=1,A1:X1,0))

NOTE: these are array formulas so they need to be entered with control &
shift & enter, not just enter.

Cheers
JulieD

"dhodges00" <[email protected]> wrote in message
news:[email protected]...
>I have 24 columns. In columns 25 and 26, I want the sum totals of every
>other
> column to its left. In other words, column 25 would show the sum of
> columns,
> 1,3,5,7,... and column 26 the sum of columns 2,4,6,8,....
>
> I have manually entered the formula =sum(a1+c1+e1+.....x1). Is there an
> easier way?
>
> Thanks in advance

[Wheatlandcampus]

How do I add non-adjacent cells; example all in Column C Row 7+11+15+19. Thanks