Understanding Number Systems - 1

 Number Systems is a very Important topic for most competitive exams. This post should help you prepare better for Number System questions.

Important Rules of Numbers

Addition:

1.  Positive Number + Positive number = Positive Number  ( 2 + 3 = 5)
2.  Negative Number + Negative Number = Negative Number  (-2 + -3 = -5)
3.  Positive Number + Negative Number= Positive Number if Positive Number is Larger ( 5 + -3 = 2)
4. Positive number + Negative Number = Negative Number if absolute value of the Negative Number is larger (5 + -7 = -2)