1.

By just observing the digit at ones place tell which of the following is a perfect square 1. 10262. 10223. 1024 4. 1027

Answer»

Answer:

The digit at the units PLACE of a square can be 1,4,9,6,5, and 0.

Using the above point I can TELL that 1 and 3 COULD be perfect squares.



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