The square of 43 ends with the digit
9
3
4
6
The square of 43 is:
432=43×43=1849
So, the last digit is 9.
Hence, option A is correct.
Write 3-digit numbers ending with 0, 1, 4, 5, 6, 9, one for each digit, but none of them is a perfect square.
State true or false.
(i) Cube of any odd number is even.
(ii) A perfect cube does not end with two zeroes.
(iii) If square of a number ends with 5, then its cube ends with 25.
(iv) There is no perfect cube which ends with 8.
(v) The cube of a two digit number may be a three digit number.
(vi) The cube of a two digit number may have seven or more digits.
(vii) The cube of a single digit number may be a single digit number.
We know that if a number ends with 4, then its square ends with 6. Therefore, the unit place digit of the square of 8754 is 6.