Julius, Edward H.

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Rapid math

tricks & tips, 30 days to number power
  • Julius, Edward H.
1992
Contains sixty easy-to-learn math tricks and tips for solving common math problems without a calculator.

Arithmetricks

50 easy ways to add, subtract, multiply, and divide without a calculator
  • Julius, Edward H.
1995
Contains fifty tricks and tips for doing addition, subtraction, multiplication and division quickly, without a calculator. Includes three appendixes on symbols, terms, and tables, parlor tricks, and number facts, and a chapter with answers to featured problems.
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