hi, Sheri !

I wish to find which cells in a range of data add up to a predetermined value.

following is in spanish, but I guess you might want to give a try (?)

http://www.teladearana.es/seccion/ex...zar-sumas.html

two versions (each with downloadable workbooks):
- a vba procedure using solver
- an UDF (based on Jimmy L. Day algorithm: - http://tinyurl.com/3qglnn)

hth,
hector.