Question

what will be the unit digit of the square of following numbers:
(I) 1296
(ii) 799
(ii) 1254​

Answer 1

Step-by-step explanation:

Unit digit of a square of a number is equal to the unit digit of square of unit digit of that number.<br> So,<br> (i)

- Unit digit of square of

will be

.<br> (ii)

- Unit digit of square of

will be

.<br> (iii)

- Unit digit of square of

will be

.<br> (iv)

- Unit digit of square of

will be

.<br> (v)

- Unit digit of square of

will be

.<br> (vi)

- Unit digit of square of

will be

.<br> (vii)

- Unit digit of square of

will be

.<br> (viii)

- Unit digit of square of

will be

.<br> (ix)

- Unit digit of square of

will be

.<br> (x)

- Unit digit of square of

will be

.<br>

Answer 2

Answer:

1) 6

2) 1

3) 6

unit digits & unit numbers of squares

0=0, 1=1 , 2=4 , 3=9, 4=6 , 5 =5 , 6=6, 7= 9 ,9=1,