SQURE OF TWO DIGITS NUMBER

MATHS IS ALWAYS FUN

Let me tell you small tricks about how to find the square of a two digit number. It means from (10- 99)

In higher secondary you might have come across :-

(a+b )^2 = a^2 + 2ab + b^2

Show squre is nothing but product of any two number

Example : –

(72)^2 = (7)^2 + 2*7*2 + (2)^2

= 49 28 4

= 5184

How :-

Step 1 :- Unit digit is 4 write as it is

Step 2 :- Tens digit is 8 write as it is

Step 3 :- Add 2 and 9 equals = 11

Step 4 :- In 11 write 1 and 1 is carry

Step 5 :- Add 1 in 4 so it 5

Hence Answer is 5184

This rule is applicable for square of all two digit number

Thanks