Question

LALACIJU.
1. What will be the unit digit of the squares of the following numbers? User
(1) 81
(ii) 272
(ii) 799
(IV) 385
(v) 1234 (vi) 26387 (vii) 52698 (viii) 99€
(ix) 12796
(x) 55555

how to do this pls explain​

Answer 1

Answer:

The unit digit of the square of 81 is 1.Because first observe given number's unit digit.It's 1.Then the square of 1 is 1.In that way we have to solve.Suppose take 55555.Unit digit is 5.Square of 5 is 25.It is two digit number.Then in that two digit number the unit digit is 5.So the answer will be 5

Answer 2

find the unit digit of 385