40 Fabulous Math Mysteries Kids Can't Resist, (Paperback)

These puzzles are very well done and are just the right mix of difficulty. They feature the 13-year-old twins Emma and Will that are faced with challenging circumstances that they must resolve. Some of them are very easy to resolve if you know some basic facts of the world. For example, the solution to one is based on the fact that the page number on the left of an open book is even. Others require slightly deeper knowledge while some will likely require a bit of writing down of the various possibilities so that they can be cross-referenced. If you are a teacher of mathematics or want to give your children the opportunity to engage in reasonable mental challenges, then this is a book you should examine. None of the math is hard and couched in the form of a simple mystery some of the math is a bit disguised.