The document provides rules for performing integer operations such as addition, subtraction, multiplication, and division. It states that for addition, signs are kept if they are the same and the number farthest from zero determines the sign if they differ. For subtraction, it is changed to addition by changing the subtraction sign to addition and the sign of the second number. For multiplication and division, an even number of negative signs yields a positive answer and an odd number yields a negative answer.

1. Rules for Integer Operations Bryan McDonald Pangburn School District www.macsclass.edublogs.org [email_address]

2. Adding (when signs are the same) Keep the sign Add Examples: 3 + 4 = 7 (-9) + (-4) = -13

3. Adding (when signs are different) Keep the sign of the number that is farthest from 0 Subtract bigger number from smaller number Examples: -3 + 5 = 2 -7 + 4 = -3

4. Subtract Change the subtraction sign to an addition sign Change the sign of the second number Follow addition rules Examples: 3 – (- 7) = 3 + (+7) = 10

5. Multiply/Divide If there are an EVEN number of negative signs …the answer will be POSITIVE If there are an ODD number of negative signs …the answer will be NEGATIVE Examples: -4 x (-7) = 28 5 x (-3) = -15