Question

Which of the following number would have digit 1 at units place? * 81 square,18square,54square,95square

Answer 1

Answer:

81

any number ending with 1 will have 1 at its units place

Answer 2

Answer:

81^2 has unit place 1

Step-by-step explanation:

81×81=6561

18×18=324

54×54=2916

95×95=9025

81 square has 1 as unit place

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