FINDING THE SQUARES OF A NUMBER ENDING IN 5

FINDING THE SQUARES OF  A NUMBER ENDING IN 5

LET US FIND THE SQUARES OF 25 , 35 , 45 , 55 , 65 , 75 AND SO ON

STEP 1: THE DIGIT IN THE TENTH PLACE IS MULTIPLIED BY ITS SUCCESSOR (2X3,3X4,4X5,5X6) AND WRITE THE NUMBER IN FRONT OF THE QUESTION.

STEP 2: ALONG WITH THE PREVIOUS NUMBER JUST WRITE 25 ON THE RIGHT SIDE TO GET THE SQUARE OF THE NUMBER CONCERNED.