Question

The units digit in the square of 56789 will be.

• A. 1
• B. 4
• C. 9
• D. 6

Answer 1

The correct option is A

1

The unit digit of the square of a number is simply the square of the unit digit of the number.
Hence, the unit digit of ${56789}^2$ = unit digit of $9^2$ =unit digit of 81 = 1.