CLASS-7
ADDITION OF INTEGERS

ADDITION OF INTEGERS -

Adding integers depends on their signs. Here are the basic rules:

1. Adding Integers with the Same Sign:-

• Both Positive:-  Add the numbers and keep the positive sign. 

       Example:-

        4 + 3 = 7

• Both Negative:-  Add the numbers and keep the negative sign. 

       Example:-

       (−5) + (−2) = −7

2. Adding Integers with Different Signs:-

• Subtract the smaller absolute value from the larger absolute value.
• Keep the sign of the number with the larger absolute value.

       Examples:-

• 7 + (−3) = 4 (Since 7 − 3 = 4 and 7 is positive, the answer is positive.)
• −8 + 5 = −3 (Since 8 − 5 = 3 and 8 is negative, the answer is negative.)

3. Special Cases:-

• Adding Zero:- Any number plus zero remains the same. 

       Example:-

                6 + 0 = 6

• Adding Opposites (Additive Inverse):-  A number plus its opposite (negative counterpart) always equals zero. 

       Example:-

               9 + (−9) = 0