Question

Find the two square roots of the number 25

Answer 1

One of the square roots is 5 and another is -5 (tell me if its right if you can)

Answer 2

± 1/2 (or ± 0.5) 

Here's how I would do it: 
0.25 = 25/100 

√0.25 = √(25/100) 
= √25/√100 
= ± 5/10 
= ± 1/2 

You have to remember that there are two square roots to a number; the primary (positive) root, and the secondary (negative) root. So be sure to include the ± sign. 

Answer: 
-1/2 and 1/2