Q1 of 85 Page 128

What will be the units digit of the square of the following numbers?

5125

Given a number 5125 and need to find out the unit digit of the square of number.

Now, the square of number, n = n2


Since, we have “5” in the units place in the given number “5125” we have to square the number 5


52 = 25 and 5 will be the units’ digit.


Hence, the units digit of the square of 5125 is 5.


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