Don't hope to get rid of books (Umberto Eco)
+371 27000041, +371 27000045
(on working days 9:00-17:00 latvian)
+371 27000041
+371 27000045

(on working days 10:00-17:00)

Speed Counting. Calculations, problems, puzzles

6.99 €
In stock
Speed Counting. Calculations, problems, puzzles
6.99 €
In basket
A unique collection: Yakov Perelman, new content, published for the first time!

The collection "Quick Counting. Calculations, Problems, Puzzles" invites you to immerse yourself in the amazing world of numerical mysteries and logical riddles with Yakov Perelman.

Under one cover are collected: "Quick Counting. Thirty Simple Mental Calculation Techniques," "Think of a Number. Mathematical Guesser," problems by Yakov Perelman from magazines over the years, as well as a collection of numerical puzzles and arithmetic problems from various collections by the Soviet mathematician.

The brochure "Quick Counting. Thirty Simple Mental Calculation Techniques" is dedicated to methods and techniques for quickly and effectively performing arithmetic calculations in your head. Yakov Perelman describes thirty techniques for simplifying addition, subtraction, multiplication, and division.

The mathematical puzzler "Think of a Number" helps develop an intuitive understanding of numerical sequences and logical relationships. The author asks you to think of a number, perform arithmetic operations, and then guesses the result of your calculation.

Ask: how? Yakov Perelman will reveal the secret at the very end of the book.

And a collection of logic problems, numerical puzzles, and problems from magazines over the years will help reinforce theoretical skills by solving non-standard problems. Combining educational value and game elements, the collection inspires continuous self-improvement and a creative approach to problem solving.
See also:

You might be interested:

Дресс-код. Голая правда о моде
Popular science and informative literature
Dress Code: The Naked Truth About Fashion
Arntzen Marie Grinde
14.99 €
In basket
Капитал в XXI веке
Popular science and informative literature
Capital in the 21st Century
Piketty Thomas, Piketty Thomas
29.99 €
In basket
Надзирать и наказывать. Рождение тюрьмы
Popular science and informative literature
Supervise and Punish: The Birth of Prison
Foucault Michel
14.99 €
In basket
Почему одни страны богатые, а другие бедные
Popular science and informative literature
Why are some countries rich and others poor?
Acemoglu Daron, Robinson James
19.99 €
In basket