Another way to find the square of the number

Hi Folks,

The first way posted is an oral way of calculating square of a number which doesn't need any piece of paper. Here is the another way to find the square of the number which can be done by paper work(or people who has eidetic memory can try by memorizing).

Here comes the way:

Example: to find 27²

1. First find the square of the units digit and keep the units digit of the result in the answer space and carry the tens digit to the next step i.e 7²=49, so the carry will be 4 and the answer's unit digit will be 9.
2. Now multiply both the digits of a number and make it twice or just multiply all the numbers which are seen in the example i.e 2x7x2  and add the carry  from the previous result to this product. So we will get answer as 32. Now carry 3 to the next step.
3. Lastly square the tens digit and add carry which is carried from the previous step. i.e 2²=4 and adding the carry we will get 7.

So the final result is 729 Tip: memorize (a+b)² = a² + 2ab + b² you will get the way to this.

Come on start thinking and practicing.

Note: The results are mentioned into bold format for your understanding.