Question

What could be the possible 'one's' digits of the square root of each of the following
Etereise 6.3
numbers?
(1) 9801
(11) 99856
(iii) 998001
(iv) 657666025
alculation find the numbers which are surely​

Answer 1

Answer:

1. 1 or 9

2. 4 or 6

3. 1 or 9

4. 5