1) Mike Leppert, HomeschoolMagazine.com excerpt. full review at link below.
If you are homeschooling, this book is an essential part of your Math Library. If your child is in a classroom setting, this book is a must-have for you to improve his/her knowledge of math and confidence in doing math work. Many children doing poorly in math have suddenly found they can do very well, simply because they KNOW their answer is correct – even before the teacher checks it. Mr. Watt says, “There is no excuse for ANY child to not get ‘As’ in math.”
Homeschool Magazine lists their review 'by state'. To read the full review, click on this link and then scroll down for 'math' on the left hand column. Click that and the full review will come up.