Koun Banega Karodpati question

 I came across this question on Koun Banega Karodpati program recently.

Question 

Whose square is bigger ??

 3  ,   - 2    ,    1   ,    - 5

Answer 

I always get confused when they mix negative numbers with positive numbers .... 

In positive numbers,  value of number increases as number goes on increasing.... 

Like   6 , 16, 26, 36........

But it is not the same with negative numbers.

Value of the number decreases as the number increases. 

-60       is less than      - 10.

Whereas    60    is greater than   10.

Now let's come to the question. 

Square of which number is greater?

Some positive and negative numbers are given. 

Square means we are multiplying the number with itself. 

Positive number square will be always positive. 

But what about negative number  ???

Surprisingly even square of negative number is a positive number    !!!

Because   -    *     -     is   +

But   +  *  -    is   -

-    *     +   is   -

So in the above question,  square of  - 5 which is  +25  is bigger compared to the square of other numbers.