Primary School Math Tricks for Quick Calculations Suitable for Upper Grades

Author: Du Guolin
Publisher:
Publish Date: 2000-10-02
Features: The book is divided into two volumes, catering to lower-middle grades and upper grades, introducing 100 tricks for performing arithmetic operations (addition, subtraction, multiplication, and division) on integers, decimals, and fractions. Each volume contains 50 tricks. Each chapter includes four parts: "Did You Know?", "Simple Algorithms", "Tricks for Quick Calculation", and "Try It". In the "Tricks for Quick Calculation" section, the focus is on the application scope, calculation patterns, formulas, shortcuts, and detailed explanations of typical examples. To help students quickly master the tricks, a sufficient number of practice questions are arranged in the "Try It" section for practical exercises.