Secrets of mental math :
Benjamin, Arthur.
Secrets of mental math : the mathemagician's guide to lightning calculation and amazing math tricks / Arthur Benjamin and Michael Shermer. - 1st ed. - New York : Three Rivers Press, c2006. - xxiv, 278 p. : ill. ; 21 cm.
"Originally published in different form as Mathemagics by Lowell House, Los Angeles, in 1993"--T.p. verso.
Includes bibliographical references (p. [271]-272) and index.
Quick tricks : easy (and impressive) calculations -- A little give and take : mental addition and subtraction -- Products of a misspent youth : basic multiplication -- New and improved products : intermediate multiplication -- Divide and conquer : mental division -- Good enough : the art of "guesstimation" -- Math for the board : pencil-and-paper math -- A memorable chapter : memorizing numbers -- The tough stuff made easy : advanced multiplication -- Presto-digit-ation : the art of mathematical magic -- Epilogue by Michael Shermer : how math helps us think about weird things.
0307338401 (alk. paper) 9780307338402 (alk. paper)
2005037289
Mental arithmetic--Study and teaching.
Magic tricks in mathematics education.
Mental calculators.
Secrets of mental math : the mathemagician's guide to lightning calculation and amazing math tricks / Arthur Benjamin and Michael Shermer. - 1st ed. - New York : Three Rivers Press, c2006. - xxiv, 278 p. : ill. ; 21 cm.
"Originally published in different form as Mathemagics by Lowell House, Los Angeles, in 1993"--T.p. verso.
Includes bibliographical references (p. [271]-272) and index.
Quick tricks : easy (and impressive) calculations -- A little give and take : mental addition and subtraction -- Products of a misspent youth : basic multiplication -- New and improved products : intermediate multiplication -- Divide and conquer : mental division -- Good enough : the art of "guesstimation" -- Math for the board : pencil-and-paper math -- A memorable chapter : memorizing numbers -- The tough stuff made easy : advanced multiplication -- Presto-digit-ation : the art of mathematical magic -- Epilogue by Michael Shermer : how math helps us think about weird things.
0307338401 (alk. paper) 9780307338402 (alk. paper)
2005037289
Mental arithmetic--Study and teaching.
Magic tricks in mathematics education.
Mental calculators.