Question

Write the unit digit of square of 799

Answer 1

Given,

The main number is = 799

To find,

The unit digit of the square of the given main number.

Solution,

First of all we need to calculate the square of the main number. When we multiply a number with itself that number, then we get the square of that number as the result of the multiplication.

Square of the main number = 799 × 799 = 638401

Now, the unit digit of a number is the right most digit of a number which contains multiple (more than one) digits.

Here, the right most digit of the square of the main number is 1, so the unit digit will be also 1.

Hence, the unit digit is 1.

Answer 2

Answer:

1 is answer 799×799=???