Card tricks, games for one or two, number magic, brainteasers and much more are included in this collection of arithmetricks. Determination, confidence and time are all that are required to solve these tricky puzzles. Comical illustrations are featured throughout.
Great book for making math fun and approachable...wish there more like it. I actually enjoyed and looked forward to helping my kid with math.
Classic problems just right for fourth graders
Published by Thriftbooks.com User , 23 years ago
My fourth grade son recently purchased this book and he has been enjoying it ever since. He really likes the problems that appear to be magical, but are in fact simple applications of numbers. None of the problems are original, most would be considered classics, and some have been around for centuries. However, that does not detract from their quality, as they require a great deal of thought, some of it of the sideways variety. Like most good puzzles, successfully arriving at the solution sometimes requires that the obvious possibility be rejected in favor of a different approach. A previous reviewer mentions that there is an error on page 69. That person is mistaken. The problem is correct as stated, the reviewer is simply not understanding that the numbers are not to be altered from their current alignment, which would mean the numbers that are left aligned are to be considered to have trailing zeros. I enjoyed the book and my children are finding the problems to be challenging and educational. In no way do I regret allowing my son to purchase it.
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