Top CAT Mentor’s  Secret to Squaring  Numbers Fast!

The Shortcut Explained – – 

Here is SoGo Sir's shorcut method to calculate the Squares of a number: If a number ends with 5 as the last number here is the method to calculate the square of numbers like 15, 25, 65, 85, etc.

Step 1 

First, split the number into two parts: 9 and 5 (i.e., 95 = 9 and 5).

Step 2 

Now calculate the square of 5, which is 25.

Step 3

Next, find the number that comes after 9, which is 10.

Step 4

Multiply 9 by 10, which gives us 9 × 10 = 90.

Step 5

Finally, merge the two numbers: 90 and 25.

Here is the final answer - The square of 95 is 9025.

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Similary we can calculate the 15² = 225,  75² = 5625,  115² =13225.