I purchased the MGMAT math review book and the companion guide but haven't seen any reviews on those. Does the math book incorporate material from the other MGMAT books (i.e. number properties, geometry etc...)?
I'm not sure what you mean by "MGMAT math review book." Can you give us the full title of the book? Is it the Foundations of Math book? That one covers all fundamental topics but at a lower / more basic level than the math covered in the 5 strategy guides. The Foundations of Math book is intended for people who have not done high-school level math in a very long time and need some extra review before using the 5 strategy guides.
Let me know whether that answers your question.
The "companion guide" I assume refers to the Official Guide Companion? And that one is pretty self-explanatory: explanations for the quant problems in OG12.
