Question

 if we square 78989, the unit digit will be *


9

1

8

81​

Answer 1

Answer:

answer is

1

I think it help

Answer 2

Answer:

The answer is 1

Step-by-step explanation:

There is a rule in squares:

*If the number ends with either 1 or 9 the square will be 1

*If the number ends with either 2 or 8 the square will be 4

*If the number ends with either 3 or 7 the square will be 9

*If the number ends with either 4 or 6 the square will be 6

*If the number ends with 5 the square will be 5

I hope this helps