Operation with Integers

By: Feri and Chuch

Adding and Subtracting Intgeres

Steps for Adding and Subtracting Integers:



  1. Follow the negative and positive rules. Same signs = positive Diferent signs = negative
  2. Add or subtract depending on what the on what the negative and positive rule tells you.
  3. Use the sign of the biggest number for your answer.


Examples Adding Integers:



-2 + (-5)= -7

-2 + (-9)= 11


8 + (-7) = 1


Examples Subtracting Integers:



-7 - 8 = -15

14 - (-6) = 20

8 - (-10) = -2

Multiplying and Dividing with Integers

Steps for Multiplying and Dividing with Integers:


1. Divide or multiply as usual

2. Use the negative and positive rule to know what sign to use for your answer.


Examples for Multiplying Integers:



-7 x -5= 35

-8 x -4= 32

-6 x -9= 54



Examples for Dividing Integers:



-6 ÷ 2= -3

-16 ÷ -4= 4

-8 ÷ -2 = 4