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2004 ★ 4.9

Secrets of Mental Math

Michael Shermer

2006

Train Your Brain

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2003

Think like a math genius

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2006

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Ann Cutler

1962

Mental Arithmetic

T.R. Goddard

1995

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Henry Sticker

1955

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2009

Rapid math without a calculator

A. Frederick Collins

1987

Mental Math Grade 4Level 3 Singapore Math

Singapore Asian Publications

2011

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J. A. McLellan

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Intellectual arithmetic

Warren Colburn

1833

Mental maths in minutes

Judy Richardson

2004

Mental Mathematics

Jan Henley

1998

Speed mathematics

Bill Handley

2000

New intellectual arithmetic

Joseph Ray

1877

Mental Math Strategies And Process Skills To Develop Mental Calculation

Singapore Asian Publications

2011

Mental Math Strategies And Process Skills To Develop Mental Calculation

Singapore Asian Publications

2011

Mental arithmetic

Brian J. Knapp

1999

Rapid math in 10 days

Edward H. Julius

1994

Mental Maths Tests

Andrew Brodie

2004

The American intellectual arithmetic

John F. Stoddard

1849

Mental maths

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2004

Doing simple math in your head

W. J. Howard

1992

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2002

Lets Do Mental Maths For Ages 89

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2013

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Singapore Asian Publications

2011

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James Bates Thomson

1847

Brain Games

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2012

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Peter Clarke

2012