 Contact

For Study plan details

10:00 AM to 7:00 PM IST all days.

For Franchisee Enquiry

OR

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

9372462318 / 9987178554

Mon to Sat - 10 AM to 7 PM # Vedic Math Trick: Squaring Any Number Ending in 9

This interesting Vedic Math trick will surely help you in reducing your time and effort in calculating square root of any number ending with number 9.

By Admin 26th Feb, 2014 03:46 pm
This interesting Vedic Math trick will surely help you in reducing your time and effort in calculating square root of any number ending with number 9.

Now let us understand this method with the help of this example

Finding the square of 49

Step One: Start by adding 1 to the number.

It now becomes 50

This number now ends in zero and is easy to square this number

50^2 = (5*5*10*10) = 2500. This is the subtotal.

Step Two: Add 50 plus 49 (the number we squared plus the number we want to square)

50 + 49 = 99

Subtract 99 from 2500 to get an answer of 2401.

To easily do such subtractions, subtract 100 (1 more than 99) from 2500 to get 2400 and then add 1 to get the answer as 2401

So square of 49 is 2401

So Simple!!

Another Example of finding the square of bigger number ending in 9.

Finding the square of 169

169^2 =
169 + 1 = 170
170^2 = 28900
170 + 169 = 339
28900 - 339 = 28900 - 400 + 1
28900 - 339 = 28561

Isn't this Vedic Math trick awesome and easy to apply!!

## CBSE Class 10 Term 1 2021 Post Paper Analysis- Science (2nd December)

02nd Dec, 2021 05:00 pm

## CBSE Class 10 Term 1 2021 Post Paper Analysis- Social Science (30th November)

30th Nov, 2021 04:24 pm

## NEET Result 2021 Declared: Cut-Off Slightly Slipped Down This Year

03rd Nov, 2021 02:22 pm
Important Resources: