Lesson 4.5 Concept: How to Multiply Integers Guidelines: When multiplying integers….. If the integer signs are the same, the product is positive ( + +)

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Lesson 4.5 Concept: How to Multiply Integers Guidelines: When multiplying integers….. If the integer signs are the same, the product is positive ( + +) or (- -). If the integer signs are different, the product is negative (+ -) or (- +)

PRACTICE 7(8) = -6(- 4) = 5(-10) = -9( 9) = -12(0) = 56 the integers are both positive, they are the same, so the product is positive. 24 the integers are both negative, they are the same, so the product is positive the integers are different, so the product is negative the integers are different, so the product is negative. 0 any number multiplied by zero is always a product of zero.

Multiply by three or more numbers work from left to right (-6)(2)(3)(-5) = (-12)(3)(-5) = (-36)(-5) = 180 Practice 12(-5)(3)(-2) =

Substitute y = (-6) 1 y = 3