The Trachtenberg Speed System of Basic Mathematics [eBook Kindle] baixar o livro de graça

Jakow Trachtenberg believed that everyone is born with phenomenal abilities to calculate, he devised a set of rules that allows every child to make multiplication, division, addition, subtraction and square-root calculations with unerring accuracy and at remarkable speed.
  • Jakob Trachtenberg Autor:
  • B006WB7R4I Isbn 10:
  • Souvenir Press; Edição: New edition Publisher:
  • 3455 KB Peso:
  • 3455 KB Peso:
  • eBook Kindle Livro de capa dura:
  • 272 páginas Livro de capa mole The Trachtenberg Speed System of Basic Mathematics [eBook Kindle]:

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