Question

Write the unit digit of square of 809​

Answer 1

Answer:

unit digit of 809 is 1

Step-by-step explanation:

we cannot square 809 it take too much time so we simply

square 9 = 81 but here are 2 digit we have to products unit digit that is 1 so the unit digit of square 809 is 1.

and ( 809 ) ^2 = 6,54,481

Answer 2

Answer:

1

Step-by-step explanation:

we cannot square 809 it take too much time so we simply

square 9 = 81 but here are 2 digit we have to products unit digit that is 1 so the unit digit of square 809 is 1.

and ( 809 ) ^2 = 6,54,481