Question

What will be the unit digit of the squares of the following numbers if a 81

Answer 1

Answer:

81²=6561

therefore unit digit of the square of 81 is 1

Answer 2

Answer:

1

Step-by-step explanation:

Unit digit of a square of a number is equal to the unit digit of square of unit digit of that number. So, (i)81 - Unit digit of square of 81 will be 1.

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