I wanted an answer key so I could help my daughter through her math. I also bought it to check her work and not have to work all the problems myself. I was so disappointed to find an incomplete key. Only half the answers to the problems. A teachers key should have ALL of the answers. Would not have wasted my money on this if I had known.

I agree with the other rating....their is only a key for some of the problems. I also would not have purchased this if I had known. Too late now. It's too bad because the way the material is presented is nice and I live everything else about the book...but we kind of need the answers!!