Question

what is the unit place the number will not be a perfect square​

Answer 1

Answer:

what is the unit place the number will not be a perfect square

E.g. 81, 121, 441, 961 all are Perfect Square having unit digit 1 and tens digit is even. – If unit digit of a number is 2 then it can't be a perfect square. – If unit digit of a number is 3 then it can't be a perfect square. – If unit digit of a perfect square is 4 then ten's digit has to be Even.