Integer Rules. Adding Integers (+) + (+) = (+) A positive plus a positive is positive. (-) + (-) = (-) A negative plus a negative is negative. (+) + (-) = subtract and use the sign of the larger integer. Integer Rules. Subtracting Integers
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(+) + (+) = (+)
A positive plus a positive is positive.
(-) + (-) = (-)
A negative plus a negative is negative.
(+) + (-) = subtract and use the sign of the larger integer
Subtracting integers is really “adding the opposite!”
Follow the following rules:
1st integer stays the same
Change minus sign to a plus sign
Use the opposite of the second integer
Follow rules for addition of integers
Multiplication and Division of Integers
Same Signs = Answer is Positive
(+) x/÷ (+) = (+)
(-) x/÷ (-) = (+)
Different Signs = Answer is Negative
(+) x/÷ (-) = (-)
Using Manipulatives to Solve Integer Problems
Red/Yellow Counter Activity
Red – negative; Yellow - positive
Integer Card Game
Red – negative; Black - positive