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32 simple tricks for quick mental calculations

av Yakov Perelman
32 simple tricks for quick mental calculations av Yakov Perelman
Om 32 simple tricks for quick mental calculations

This short book is a collection of simple and easily grasped tricks to speed up your mental arithmetic. If you want to master them you should realize that to be used fully they need to be approached conscientiously, not mechanically. But it pays to master them as they will enable you to do calculations in your head without error, as with written calculations.

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  • Språk:
  • Engelska
  • ISBN:
  • 9782917260982
  • Format:
  • Häftad
  • Sidor:
  • 18
  • Utgiven:
  • 26. januari 2019
  • Mått:
  • 152x229x6 mm.
  • Vikt:
  • 44 g.
Leveranstid: 2-4 veckor
Förväntad leverans: 10. december 2024

Om Yakov Perelman

Se alla böcker av Yakov Perelman

Beskrivning av 32 simple tricks for quick mental calculations

This short book is a collection of simple and easily grasped tricks to speed up your mental arithmetic. If you want to master them you should realize that to be used fully they need to be approached conscientiously, not mechanically. But it pays to master them as they will enable you to do calculations in your head without error, as with written calculations.

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