Find out square of number between 75-100

Finding out square of number between 75-100 is very simple. But before applying any trick on this 

You have to learn at least the square value of numbers between 1-25.

Example 1 : Find out 97²

(i)                  97 is 3 less than 100 (100-3=97)

(ii)                Calculate in mind : 97-3=94 followed by 3²=09 (Dont forget to put 0 before 9)

(iii)               Thus 97²=9409

Example 2 : Find out 86²

(i)                  86 is 14 less than 100

(ii)                Calculate 86-14=72 followed by 14²=196 (take 1 as carry and add it with 72)

(iii)               Thus 86²=7396