Faster than a calculator | Arthur Benjamin | TEDxOxford

Introduction

This tutorial is inspired by Arthur Benjamin's TEDx talk on high-speed mental calculations. It aims to provide you with practical techniques to enhance your mathematical skills and mental agility, enabling you to perform impressive calculations quickly and accurately.

Step 1: Embrace the Power of Patterns

• Understand that mathematics often involves recognizing and utilizing patterns.
• Practice identifying patterns in numbers, such as:
  • Multiplication tables
  • Addition sequences
• Familiarize yourself with common mathematical tricks, like:
  • The distributive property to simplify calculations. For example, to calculate 9 x 7, you can think of it as (10 x 7) - 7 = 70 - 7 = 63.

Step 2: Use Mental Math Techniques

• Learn specific mental math strategies to enhance your calculation speed. Some techniques include:
  • Breaking down numbers: For example, to multiply 14 x 6, you can break it down into (10 x 6) + (4 x 6) = 60 + 24 = 84.
  • Doubling and halving: If you need to calculate 16 x 25, you can halve 16 to get 8 and double 25 to get 50, making it easier: 8 x 50 = 400.

Step 3: Practice Memorization Techniques

• Enhance your memory through various methods:
  • Chunking: Break numbers or formulas into smaller groups. For example, remember 1492 as "14-92."
  • Visualization: Create mental images of numbers or concepts to strengthen recall.
  • Use mnemonic devices to remember sequences or formulas effectively.

Step 4: Engage in Regular Practice

• Consistency is key. Set aside time each day to practice:
  • Solving math problems without a calculator.
  • Engaging in math games or apps that focus on speed and accuracy.
  • Competing with friends or through online platforms to make practice fun and engaging.

Step 5: Explore Advanced Techniques

• Once comfortable with basic techniques, explore more complex methods, such as:
  • Vedic Mathematics: A collection of techniques for rapid mental calculation.
  • Abacus techniques: Learning to visualize and manipulate numbers using an abacus can significantly enhance mental calculation skills.

Conclusion

By applying these techniques, you can develop impressive mathematical skills that will serve you well in everyday situations. Begin by recognizing patterns, practicing mental math strategies, and engaging in regular practice. As you become more confident, explore advanced techniques to further accelerate your abilities. Happy calculating!