Jawahar Navodaya Vidyalaya Selection Test (JNVST)
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Cross-Checking: Verifying answers during the exam through alternative methods
🚀 Cross-checking is a valuable skill that helps you verify your answers during exams by using alternative methods. This ensures that your answers are correct and gives you confidence in your solutions. Imagine you are shopping in a local market in India. You calculate the total cost of vegetables in your head, but to be sure, you use a calculator to verify your calculation. This is similar to cross-checking in exams, where you use different methods to confirm your answers.
Examples💡
Example 1: Suppose you solved a math problem using addition. To cross-check, you can use subtraction. If you added 15 and 20 to get 35, you can subtract 20 from 35 to see if you get 15.
Example 2: If you calculated the area of a rectangle by multiplying length and width, you can cross-check by dividing the area by the length to see if you get the width.
Example 3: In a word problem, if you found the total cost by multiplying the price per item by the number of items, you can cross-check by dividing the total cost by the number of items to see if you get the price per item.
Common Mistakes to Avoid⚠️
- Relying on only one method and not verifying with another method.
- Not understanding the alternative method used for cross-checking.
- Skipping cross-checking due to time constraints, leading to unchecked errors.