Question

what will be the unit digit of square of 799?​

Answer 1

Answer:

Hence, the unit's digit of square of 799 is 1. (iv) The number 3853 contains its unit's place digit 3. So, the square of 3 is 9.

Answer 2

Hence, the unit's digit of square of 799 is 1. (iv) The number 3853 contains its unit's place digit 3. So, the square of 3 is 9. Hence, the unit's digit of the square of 3853 is 9.