Find the square of the number in the range 1-500 which is a perfect square. The number when turned upside down still results in a perfect square with the square root in the range 1-500. (Assuming numbers 1, 8, 0 remain same when turned upside down with 6 and 9 resulting in 9 and 6 in being turned upside down)

Which of the following numbers is a perfect square?a209 b1 000c1 524 d1 764

Which of the following is not a perfect square number?12252025252530254225

What is the smallest four-digit number that is a perfect square?a1 004 b1 016c1 024 d1 036

Using perfect squares, estimate the square root of .

If it is possible to make a three-digit number, which is a perfect square of a two-digit number from the second, the fourth and the eight digits of 31792056, using each digit only once, what is the two-digit number? If the perfect square cannot be formed, your answer is ‘N’ and if more than one such numbers can be formed, your answer is ‘X’