Question

What will be the unit digit of the squares of the following numbers?

$1234$

Answer 1

Unit digit of number:

To find the unit digit of the square of any number, we have to find the square of the unit digit of the given number and its unit digit will be the unit digit of the square of the given actual number.

Unit digit of $1234$ is $4$ and $4^2=16$

Since the unit digit of $16$ is $6$.

Hence, the unit digit of the square of the given number is $6$.