INTEGERS ARTHIMETIC OPERATIONS AND ABSOLUTE  VALUES

INTEGERS ARTHIMETIC OPERATIONS AND ABSOLUTE  VALUES
Addition of integers 
    As we already know addition of any two numbers a and b means moving b units to right of a on the line. The same is followed even in the addition of Integers.
Case-I                                     
 
Additing of two positive integers
Ex - (+2) + (+3) = +5
    

     We observe from the number line that (2) + (3) means 2 units from ‘0’ towards its right and 3 units from 2 towards its right gives 5 units from ‘0’
Case-II  Addition of ‘2’ negative Integers
Example:-  (-2) + (-3) = -5
 
    We observe from the number line that  (-2) + (-3) means 2 units to the left of ‘0’ and 3 units to the left (-2) gives ‘5’ units to the left of zero. i.e. (-2) + (-3) = 5
Case-III - Addition of a negative and a positive Integer
Ex-1 :     (-2) + (-3) = +1

     We observe from the number line that (-2) +3 means 2 units to the left of zero and 3 units right of (-2) gives 1 unit to right of zero i.e. (-2)+3 =1