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Gulf Coast Books LLC
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Eligible for Return, Refund or Replacement within 30 days of receipt
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Returns
Eligible for Return, Refund or Replacement within 30 days of receipt
Returnable Yes
Resolutions Eligible for refund or replacement
Return Window 30 days from delivery
Refund Timelines Typically, an advance refund will be issued within 24 hours of a drop-off or pick-up. For returns that require physical verification, refund issuance may take up to 30 days after drop-off or pick up. Where an advance refund is issued, we will re-charge your payment method if we do not receive the correct item in original condition. See details here.
Late fee A late fee of 20% of the item price will apply if you complete the drop off or pick up after the ‘Return By Date’.
Restocking fee A restocking fee may apply if the item is not returned in original condition and original packaging, or is damaged or missing parts for reasons not due to seller error. See details here.

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Classic Mathemagic Hardcover – September 1, 2003

by Raymond Blum (Author), Adam Hart-Davis (Author), Bob Longe (Author),
4.1 4.1 out of 5 stars 9 ratings
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Presents a collection of various kinds of math puzzles--including number tricks, memory tricks, and geometric designs--in different levels of difficulty; also includes explanations of mathematical principles.
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  1. Print length
    280 pages
  2. Language
    English
  3. Publisher
    Sterling Pub Co Inc
  4. Publication date
    September 1, 2003
  5. Dimensions
    5.5 x 0.75 x 6.75 inches
  6. ISBN-10
    1402710690
  7. ISBN-13
    978-1402710698
  8. See all details
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Product details

  • Publisher ‏ : ‎ Sterling Pub Co Inc (September 1, 2003)
  • Language ‏ : ‎ English
  • Hardcover ‏ : ‎ 280 pages
  • ISBN-10 ‏ : ‎ 1402710690
  • ISBN-13 ‏ : ‎ 978-1402710698
  • Item Weight ‏ : ‎ 1.1 pounds
  • Dimensions ‏ : ‎ 5.5 x 0.75 x 6.75 inches
  • Customer Reviews:
    4.1 4.1 out of 5 stars 9 ratings

Customer reviews

4.1 out of 5 stars
4.1 out of 5
We don’t use a simple average to calculate the overall star rating and percentage breakdown by star. Our system gives more weight to certain factors—including how recent the review is and if the reviewer bought it on Amazon. Learn more
9 global ratings

Top reviews from the United States

marc s. luter
5.0 out of 5 stars Five Stars
Reviewed in the United States on April 21, 2016
Verified Purchase
Great book.
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PG
4.0 out of 5 stars puzzles
Reviewed in the United States on September 8, 2012
Verified Purchase
I'm a magician and I bought this as a source of ideas for tricks. It has lots of puzzles (not adaptable for most audiences) and some very nice tricks that have no presentation ideas. It's useful to me, but would lead a young, or literal minded, magician into some very mechanical performances.
One person found this helpful
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R. Schwiebert
3.0 out of 5 stars May have mistakes?
Reviewed in the United States on November 29, 2006
My nephews have this book on their shelf. Being a math graduate student, I flipped it open to see what's inside. It looks interesting, and certainly has some cool stuff.

However only after 5 minutes, I ran across this (keep in mind composite numbers are numbers which are NOT prime):

"Are there ever 1,000,000 consecutive composite numbers?"

I know it's true by an abstract algebra theorem. I was curious how they would explain it to a young adult reader. This was how:

"The answer is an emphatic yes. THe 1,000,000-term sequence 1,000,001+2, 1,000,001+3 all the way up to 1,000,001+1,000,001 consists entirely of composite numbers, becuse 1,000,001+K is always evenly divisble by K for any K in this range."

Firstly, I'm pretty sure you can check online to see there are lots of primes between 1,000,000 and 2,000,000. In the second place, their assertion about divisbility is ridiculous. According to that statement, 1,000,001+2=1,000,003 is divisible by 2.

I honestly don't know how many spots there are in the book that are this way. Maybe I just got lucky finding this one question.
4 people found this helpful
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