ADDING INTEGERS

   1.  If the sign are the
same ( + and +)  (- and -), find the sum of the absolute values, and use the common sign for the sign of the answer

      
- 4 + - 5 = -9              The absolute value of -4 = | -4| = 4
                                         The absolute value of -5 = | -5| = 5 
                                                 4 + 5 = 9
              
         
7 + 3 = 10

   2.   If the sign are different  ( + and -)  (- and +),  find the difference (subtract) of the absolute values, and use the sign of the term with the largest absolute value for the sign of the answer

         
- 4  +  5 =  1          The absolute value of -4 = | -4| = 4
                                         The absolute value of 5 = | 5| = 5 
                                                 5 - 4 = 1


            
7  +  - 3 = 4           The absolute value of 7 = | 7| = 7
                                         The absolute value of  -3 = | - 3| = 3 
                                                 7 - 3 = 4
SUBTRACTING INTEGERS

   
1.  Change the subtraction sign to addition and the sign of the second term to its opposite.   Then follow the above rules for addition.

       
5 - (-3) =
      
5  +  (+3) =                     Now follow the rules for addition

      
- 5 - ( - 3) =
        -5 +  ( + 3) = 
                 Now follow the rules for addition
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APPLIED MATH I
APPLIED  MATH I
Below you will find information on the topics we cover in class.  Use the information on these pages to help you review the topics. 
PRACTICE

Go to the Funbrain site and use the practice quiz below to practice Add/Subtract  Integers.  Take the practice quiz as many times as you like.  It is not for a grade but to practice for your test. 
Our secret word is
math 01    Don't forget there is a space between
the
h and the 0.                   Add/Subtract  Integers