Am trying to add any best 6 smallest in a row

Not understood!

For example
A B C D E F G H I J K
1 6 4 2 6 1 2 4 3 2 1 5
2
3
4
I want to add the lowest 6 number from the sheet above

=sumproduct(small($a$1:$k$1,column($a:$f)))

For example
A B C D E F G H I J K
1 6 4 2 6 1 2 4 3 2 1 5
2 4 5 5 2 2 6 1 3 1 2 5
3
4
I want to add the lowest 6 numbers from the sheet above
From the first column I want excel to add any small numbers but the first 6 from a to k

Don't know what you mean by your second sentence.

It would have been more helpful if you showed what result you expect, based on the above numbers.

Is this it?

=SUMIF(A1:K1,"<="&SMALL(A1:K1,6))

copied down

=sumproduct(small($a$1:$k$1,column($a:$f)))
For example
A B C D E F G H I J K
1 6 4 2 6 1 2 4 3 2 1 5
2 4 5 5 2 2 6 1 3 1 2 5
3
4
I want to add the lowest 6 numbers from the sheet above
From the first column I want excel to add any small numbers but the first 6 from A1 to K1

I want to add 1 1 2 2 3 4 from the first row
And 1 1 2 2 2 3 from the second row

Why not 1 1 2 2 2 3 (total 11) from the first row?

If I am right then that's exactly what my formula in #4 does.

=SUMPRODUCT(SMALL(A1:K1,COLUMN($A:$F)))

I want the formula to randomly select any six small numbers on a row
Without arrange them. From the table above the ones 1 1 2 2 2 3 which is (11)
But from your formula $A:$F
Meaning from A to F but I want excel to check A to K and select any six small numbers and add them

Please It didn't work

Why is it so difficult for you then to tell what the result should be (exact numbers please)! And it would be fine with more than just two examples.

By the way, your last sentence seems to demonstrate that you don't understand the formula.