Question

what will be the units of the square of the following numbers:
(I) 81 (2)272 (3)799​

Answer 1

Answer:

( I ) = 9

( 2) =

Step-by-step explanation:

I 9 ×9 = 81.

I don't know how

Answer 2

Answer:

1.81=1

Hence, unit's digit of square of 81 is 1

2.272=4

Hence, unit's digit of square of 272 is 4

3.799=1

Hence, unit's digit of square of 799 is 1

Step-by-step explanation:

Hope it helps❤️