Question

square number does not end with at unit place​

Answer 1

Answer:

square number ends with = 0, 4, 9, 6, 5, 1,

square number does not ends with = 2, 3, 7, 8

Answer 2

Answer:

Property 1: A number having 2, 3, 7 or 8 at unit's place is never a perfect square. In other words, no square number ends in 2, 3, 7 or 8.

Property 2: The number of zeros at the end of a perfect square is always even.

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