Question

All perfect square numbers end with___________ at unit's place.​

Answer 1

Answer:

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. 2 or 8 at the units place ends in 4. 3 or 7 at the units place ends in 9

Step-by-step explanation:

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Answer 2

All perfect square numbers end with 0,1,4,5,6,9 at unit's place.