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—
Michael Shermer, Arthur T. Benjamin, Arthur T. Benjamin
missing page info • first pub 1993 (view editions)
ISBN/UID: None
Format: Not specified
Language: English
Publisher: Not specified
Edition Pub Date: Not specified
Description
How to calculate almost anything in your head. Did you know that it's easier to add and subtract from left to right, rather than the other way round? You can be taught to square a three-digit number in seconds. Learn how to perform lightning calcu...
Community Reviews
Content Warnings
—
Michael Shermer, Arthur T. Benjamin, Arthur T. Benjamin
missing page info • first pub 1993 (view editions)
ISBN/UID: None
Format: Not specified
Language: English
Publisher: Not specified
Edition Pub Date: Not specified
Description
How to calculate almost anything in your head. Did you know that it's easier to add and subtract from left to right, rather than the other way round? You can be taught to square a three-digit number in seconds. Learn how to perform lightning calcu...
Community Reviews
Content Warnings