Speed is just as crucial as accuracy in the time-constrained environment of defence examinations, particularly in subjects like mathematics and reasoning. The ability to perform calculations quickly and efficiently can save you valuable minutes, allowing you to attempt more questions and maximize your score. This article provides practical strategies and techniques to help you improve your calculation speed for defence exams like NDA, CDS, and AFCAT.
1. Master Basic Arithmetic:
A strong foundation in basic arithmetic operations (addition, subtraction, multiplication, and division) is essential. Practice these regularly until they become second nature. Focus on mental calculations for simple operations.
- Tip: Use flashcards or online tools to practice basic arithmetic facts.
2. Learn and Apply Vedic Maths Techniques:
Vedic Mathematics offers a range of shortcuts and techniques for faster calculations. Learning and practicing these methods can significantly speed up your problem-solving process, especially for multiplication, division, squares, cubes, and square roots.
- Tip: Explore books and online resources dedicated to Vedic Mathematics and practice the techniques regularly.
3. Memorize Squares, Cubes, and Tables:
Memorizing squares up to 30, cubes up to 15, and multiplication tables up to 20 can save you considerable time during calculations.
- Tip: Create charts and revise these regularly. You can also use mnemonics or patterns to aid memorization.
4. Practice Mental Calculations Regularly:
Make mental calculations a part of your daily routine. Try to solve simple arithmetic problems in your head whenever you have a few spare moments. This will train your brain to perform calculations quickly without relying on pen and paper.
- Tip: Start with simple calculations and gradually increase the complexity.
5. Use Approximation Techniques:
In some multiple-choice questions, you can use approximation to quickly eliminate incorrect options and arrive at the correct answer without performing the exact calculation.
- Tip: Learn to round off numbers appropriately and estimate the result.
6. Break Down Complex Calculations:
When faced with a complex calculation, break it down into smaller, more manageable steps. This reduces the chance of errors and makes the calculation easier to handle mentally or on paper.
- Tip: Look for patterns or simplifications that can make the calculation easier.
7. Practice with Timed Tests:
Simulate the exam environment by practicing with timed tests. This will help you get accustomed to the pressure of solving problems quickly and accurately within a specific time frame.
- Tip: Analyze your performance in timed tests to identify areas where you are slow and work on improving your speed in those areas.
8. Focus on Accuracy First, Then Speed:
While speed is important, accuracy should be your priority initially. Once you have a good grasp of the concepts and can solve problems accurately, gradually work on increasing your speed.
- Tip: Don’t sacrifice accuracy for speed, as negative marking can penalize incorrect answers.
9. Identify and Eliminate Unnecessary Steps:
As you become more proficient, you’ll learn to identify and eliminate unnecessary steps in your calculations, making the process more efficient.
- Tip: Look for direct methods or shortcuts to arrive at the answer.
10. Stay Calm and Focused:
During the exam, stay calm and focused. Panic can lead to careless errors and slow down your calculation speed.
- Tip: Practice relaxation techniques to manage exam stress.
Improving your calculation speed takes time and consistent effort. By incorporating these techniques into your preparation routine, you can enhance your problem-solving efficiency and perform better in the mathematics and reasoning sections of your defence exams.
