Question

what could be the possible ones digits of the square root of each of the following numbers
(a)9801
(b)99856
(c) 998001
(d)657666025

Answer 1

(a) 1. (b)6. (c)1. (d) 5.
$1 \times 1 = 1$
$6 \times 6 = 36$
unit digits 6.
similar for other

Answer 2

Answer:

Step-by-step explanation:

Possible one degit of square root of the number:

a) & c) number ending with one. Hence, possibility of one degits are 1 or 9

d) number ending with 5.

Answer is 5 only.

b) number ending with 6:

Answer is 4 or 6