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Price: 801.00 RUB
Unlock the power of rapid mental calculation with this two-book set featuring the renowned methods of Jakow Trachtenberg and Yakov Perelman. The first book, The Trachtenberg Speed System of Basic Mathematics, presents a globally recognized approach often called "mathematical shorthand." It simplifies arithmetic operations, making them quicker and more intuitive—valuable for both students and adults aiming to sharpen their math skills. The second book, Quick Counting: Thirty Simple Methods of Mental Arithmetic by science popularizer Yakov Perelman, offers proven techniques for performing calculations without paper or a calculator. It covers multiplication, division, and squaring, relying on mathematical logic rather than rote memorization. Regular practice with the exercises helps train memory and develop abstract thinking. Mastering these methods can improve calculation speed and accuracy, enhance overall math proficiency, and boost financial management efficiency. This set is recommended for math teachers, students, and anyone seeking to advance their mathematical abilities and apply them practically.