Quick mathematics: secrets of mental calculation
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Simple methods are offered that allow you to perform calculations in your head with lightning speed, such as multiplication, division, addition and subtraction of numbers, operations with fractions, and extraction of square and cube roots. For a wide range of readers.
FL/217837/R
Data sheet
- Name of the Author
- Билл Хэндли
- Language
- Russian
- Translator
- Е. А. Самсонов
2 books by the same author:
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Simple methods are offered that allow you to perform calculations in your head with lightning speed, such as multiplication, division, addition and subtracti...