Hi Kris,

I need to know how many are in A but don't have anything in B:
=SUMPRODUCT(--ISNUMBER(A1:A4),--ISBLANK(B1:B4))

How many are in C but don't have anything in A or D:
=SUMPRODUCT(--ISNUMBER(C1:C4),--ISBLANK(A1:A4),--ISBLANK(D1:D4))

Regards,
Ivan