This book was written by someone who could not pass a HS equivalency exam. The number of incorrect answers to the Math problems is unbelievable. For your own sanity, teach your child yourself before you even think of opening this book. I’d like to know who edited this. How can McGraw Hill publish this - does anyone in this world know grammar-school math? I wish I paid for this directly and not along with tuition to the review class. I would insist on a refund and sue for emotional damage!
I am unable to enter zero stars - that is the only reason it gets one star.

This book is full of mistakes in the diagnostic tests, as well as the full practice tests. There are multiple mistakes in every section–verbal and math. Do not use the answer keys–they are wrong! OFten they contradict themselves. If you buy this, make sure you check your child’s work, and correct the mistakes in the book.

I second the comments of the previous Reviewer. The Publisher and Editors of this book should be SUED for allowing so many errors. It is terribly frustrating for kids trying to complete 15-30 seconds per question when, a) there are no correct answers, b) there are multiple correct answers, c) there are typo’s or missing information in the questions. And the Answer Key is full of errors too. Just awful !!