Question

Write the unit digit of the square of the following numbers 72

Answer 1

Answer:

The unit digit of the square of 72 is 4

The unit digit of the square of the following unit digit numbers are :

2 = 4

3 = 9

4 = 6

5 = 5

6 = 6

7 = 9

8 = 4

9 = 1

Answer 2

72^2 =4

it wasn't that much tough