1. Silly Arithmetic Errors: Don't underestimate the power of simple addition, subtraction, multiplication, and division. Double-check your calculations, especially when dealing with signs and decimals.

1. Silly Arithmetic Errors: Don't underestimate the power of simple addition, subtraction, multiplication, and division. Double-check your calculations, especially when dealing with signs and decimals.

2. Unit Conversions: Remember to convert units consistently throughout your calculations. Forgetting to convert meters to centimeters or radians to degrees can lead to inaccurate answers.

2. Unit Conversions: Remember to convert units consistently throughout your calculations. Forgetting to convert meters to centimeters or radians to degrees can lead to inaccurate answers.

3. Trigonometric Function Errors: Be familiar with the properties of sine, cosine, tangent, and their inverses. Mixing up values or using the wrong quadrant can be costly.

3. Trigonometric Function Errors: Be familiar with the properties of sine, cosine, tangent, and their inverses. Mixing up values or using the wrong quadrant can be costly.

4. Algebraic Mistakes: Pay attention to order of operations (PEMDAS) and simplify expressions before plugging them into calculations.

4. Algebraic Mistakes: Pay attention to order of operations (PEMDAS) and simplify expressions before plugging them into calculations.

5. Sign Errors: Plus or minus? Keep a close eye on signs throughout your calculations, especially when dealing with negative coefficients or inequalities.

5. Sign Errors: Plus or minus? Keep a close eye on signs throughout your calculations, especially when dealing with negative coefficients or inequalities.

6. Over-reliance on Calculator: While calculators are helpful, don't become overly reliant on them. Understand the concepts behind the calculations and develop mental math skills for quick checks.

6. Over-reliance on Calculator: While calculators are helpful, don't become overly reliant on them. Understand the concepts behind the calculations and develop mental math skills for quick checks.

7. Misreading the Question: Read the question carefully and identify what information is given and what is being asked. Don't jump to calculations before understanding the context.

7. Misreading the Question: Read the question carefully and identify what information is given and what is being asked. Don't jump to calculations before understanding the context.

8. Data Input Errors: Double-check the values you input into your calculator or equations. A single typo can throw your entire calculation off.

8. Data Input Errors: Double-check the values you input into your calculator or equations. A single typo can throw your entire calculation off.

9. Not Checking Your Final Answer: Don't assume your first attempt is always correct. Take the time to review your calculations and verify your final answer.

9. Not Checking Your Final Answer: Don't assume your first attempt is always correct. Take the time to review your calculations and verify your final answer.

10. Lack of Practice: Regular practice is key to mastering calculations and building confidence. Solve past year papers, mock tests, and practice problems to identify your weak areas and refine your skills.

10. Lack of Practice: Regular practice is key to mastering calculations and building confidence. Solve past year papers, mock tests, and practice problems to identify your weak areas and refine your skills.

Remember, JEE Main is a test of not just knowledge but also of accuracy and speed. By avoiding these common calculation mistakes and focusing on practice, you can ace the exam and conquer your engineering dreams!

Remember, JEE Main is a test of not just knowledge but also of accuracy and speed. By avoiding these common calculation mistakes and focusing on practice, you can ace the exam and conquer your engineering dreams!