Miracle math

by Lorayne, Harry

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Presents mathematical shortcut and "how to develop a calculator in your head."

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Title Statements

Full title :Miracle math / by Harry Lorayne.

Summary

Presents mathematical shortcut and "how to develop a calculator in your head."

Edition Statements

Publication Date:1992, ©1966.

Publication Statements

Publisher(s):Barnes & Noble
Place of Publication:New York
Language:eng
Publication Date:1992, ©1966.

The Physical Object

Description:250 pages ; : 22 cm

Edition Identifiers

ISBN:0880298766, 9780880298766
oclc:ocm27348482
LC Classification:QA111
Dewey Decimal:513.9

Mathematical miracle number one: how to add faster than an adding machine -- How to shift addition into high gear, making lightning-quick estimates, and mental math -- Mathematical miracle number two: how to subtract without borrowing -- Mathematical miracle number three: how to multiply without multiplying -- How to solve "impossible" multiplication problems, in your head -- More multiplication short cuts -- Mathematical miracle number four: how to divide without dividing, and without errors -- Short-cut devices and techniques for gaining even greater speed in division -- Instant proof: how to check your figures instantaneously and never be in doubt of your work.