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Many useful procedures explained and taught: 2-column addition, left-to-right subtraction, direct multiplication by numbers greater than 12, mental division of large numbers, more. Also numerous helpful shortcuts. More than 8,000 problems, with solutions. 1945 edition.
"The book is written simply so anyone can understand. The book teaches simple strategies that will enable you to make lightning calculations, multiplication, division, addition and subtraction, squaring numbers or extracting square roots and cube roots; add and subtract fraction…
"The book is written simply so anyone can understand. The book teaches simple strategies that will enable you to make lightning calculations, multiplication, division, addition and subtraction, squaring numbers or extracting square roots and cube roots; add and subtract fraction…
"In his latest book, mathematician Alfred S. Posamentier provides easily understandable, easily presentable and easily replicated tricks that one can do with mathematics"--
"In his latest book, mathematician Alfred S. Posamentier provides easily understandable, easily presentable and easily replicated tricks that one can do with mathematics"--
Didáctica de matemáticas: aportes y reflexiones
by Parra, Cecilia, Saiz, Irma Elena
fromPaidós educador
0
Type: Book