Question

Unit number of a perfect square number may be _______​

Answer 1

Answer:

0,1,4,6or9

Step-by-step explanation:

The unit digit of a perfect square can be only 0, 1, 4, 5, 6 or 9. The square of a number having: 1 or 9 at the units place ends in1

Answer 2

The unit digit of a perfect square can be only 0, 1, 4, 5, 6 or 9.

Explaination

The square of a number having: 1 or 9 at the units place ends in1

A number having 2,3,7or 8 at unit's place is never a perfect square

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