=SUMPRODUCT(-(A2:A20=23),--(C2:C20="M"),B2:B20)

etc.

--
HTH

Bob Phillips

"Elizabeth" wrote in message
...
Hi, I am trying to create a formula that adds certain values from Column B
only if Column A equals a certain criteria AND Column C equals a certain
criteria.

Column A Column B Column C

23 23.88 V
23 100.00 M
24 9.95 M
24 23.88 M
25 23.88 V
25 23.88 V
26 23.88 A
26 23.88 A
26 23.88 M
26 23.88 M
26 23.88 V
26 9.95 V
27 23.88 A

Specifically, I need the total from Column B for all M's on the 23rd, all
V's on the 23rd, etc. In Column D, I've tried many different formulas but
they either total the entire B Column (not just the cells that match the
criteria) or they only "sum" Column B for the row the formula resides on.
Any
suggestions would be greatly appreciated.