What could be the possible ones digits of the square root of each of the following numbers? (i) 9801 (ii) 99856 (iii) 998001 (iv) 657666025

Explanation

(i)At units place of `9801` is `1`.
`1times1=1`
Therefore, possible ones digits of the square root of this number is `1`.

(ii)At units place of `99856` is `6`.
`6times6=36`
Therefore, possible ones digits of the square root of this number is `6`.

(iii)At units place of `998001` is `1`.
`1times1=1`
Therefore, possible ones digits of the square root of this number is `1`.

(iv)At units place of `657666025` is `5`.
`5times5=25`
Therefore, possible ones digits of the square root of this number is `5`.