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Yohaku: A New Type of Number Puzzle Paperback – Feb. 8 2018

5.0 out of 5 stars 6 ratings

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  • Yohaku: A New Type of Number Puzzle
  • +
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Total price: CDN$18.36
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Product details

  • Paperback : 82 pages
  • ISBN-10 : 154513832X
  • ISBN-13 : 978-1545138328
  • Product Dimensions : 12.7 x 0.48 x 20.32 cm
  • Item Weight : 145 g
  • Publisher : CreateSpace Independent Publishing Platform (Feb. 8 2018)
  • Language: : English
  • Customer Reviews:
    5.0 out of 5 stars 6 ratings

Product description

About the Author

Mike Jacobs is a Mathematics teacher in Ontario, Canada. Originally from Yorkshire in the U.K., he has been teaching for 27 years. He has created yohaku puzzles as a means of encouraging problem solving as well as practicing and improving number sense. His favourite prime number is 23 and he is convinced that triangle numbers are much more cooler than square numbers.

Customer reviews

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Top reviews from Canada

Reviewed in Canada on December 29, 2018
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Reviewed in Canada on September 6, 2019
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Reviewed in Canada on July 18, 2018
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Reviewed in Canada on February 25, 2018
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Top reviews from other countries

Mol_12345
5.0 out of 5 stars Really fun puzzles!
Reviewed in the United States on December 5, 2018
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5.0 out of 5 stars Buy this!
Reviewed in the United States on March 31, 2018
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