Operations with integers

Adding, Subtracting, Multiplying and Dividing integers

Adding and Subtracting Integers

Unlike signs subtract and stays with the sign of the bigger number and like signs add and stay with the signs.

(Two positive make a positive, two negatives make a positive, one positive and one negative make a negative and one negative and one positive make a negative.)


Adding

example 1. -7+-2= -9

example 2. 9+-13= -4

example 3. 8+-17= -9


Subtracting

example 1. 8-(-9)= 17

example 2. -7-9= -16

example 3. 4-10= -6

Multiplying and Dividing Integers

Unlike signs give you a negative answer and Like signs give you a positive answer.


example 1. -3x-2= 6

example 2. -5x9= -45

example 3. -6x6= -36



example 1. -12/ 3= -4

example 2. -20/4=-5

example 3. -36/4= -9

Big image