Adding and Subtracting Integers
Vocabulary Negative sign –Left side of number line Positive sign –Right side of number line Operation –Action which produces a new value second term Negative sign, operation
Adding Integers Signs are the same –Add –Keep the sign = = -6
Adding Integers Signs are different –Subtract –Take sign of larger number = = +1
Subtracting Integers Subtracting –Instructions SCC First term –Stays the same Operation –Change to opposite Second term –Change the sign = = +7 Stay, - operation changes to +, - sign of second term changes to + Now you have an addition problem (check addition rules) –Signs are the same Add Keep sign
Practice Signs are the same Signs are different Use SCC = = = =