Cool Math: Math Tricks, Amazing Math Activities, Cool Calculations, Awesome Math Factoids , and More

Rating:
Summary: errata
Review: I like that it tells the history of math and numbers. It tells a lot of cool math tricks that can really help people. It tells a lot about Pi like how to remember the first 8 decimal places. It also tells quick facts about math, like the boy in Japan who took Pi to 40,000 decimal places. It took him 15 hours. I really like the book, and I suggest that other kids read it.

Rating:
Summary: I think it's a great book that can help a lot with math.
Review: I like that it tells the history of math and numbers. It tells a lot of cool math tricks that can really help people. It tells a lot about Pi like how to remember the first 8 decimal places. It also tells quick facts about math, like the boy in Japan who took Pi to 40,000 decimal places. It took him 15 hours. I really like the book, and I suggest that other kids read it.

Rating:
Summary: errata
Review: The author is clearly struggling with the material
leading to significant mistakes throughout (e.g.
whole numbers are confused with rationals, the four
color "solution" is muddled, history is garbled--
not to mention B.C.E. and A.D. being juxtaposed on
the time line). It's a shame because a diligent
editor could have caught these in time for revision.