Calculation mistakes can be a common problem in GATE examinations. The key to avoiding them is to ensure a thorough preparation of concepts and formulae required for the examinations. Firstly, it is important to practice with a sufficient number of sample papers to develop speed and accuracy in solving questions.
The other methods include using mental calculations while solving long numerical questions and using calculators whenever needed. In order to check the accuracy, one can use past question papers to cross-check answers.
For tricky questions, students should remember to check the answer against all the conditions given in the question. Additionally, students should make sure to double-check all the answers to avoid careless mistakes.