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Lesson 9 Rules for Multiplication & Division of Signed Numbers –Inverse Operations

Lesson 9 Rules for Multiplication & Division of Signed Numbers –Inverse Operations . Rules for Multiplication: The product of two positive real numbers is positive real number. In other words a + # x + # = +

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Lesson 9 Rules for Multiplication & Division of Signed Numbers –Inverse Operations

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  1. Lesson 9 Rules for Multiplication & Division of Signed Numbers –Inverse Operations Rules for Multiplication: The product of two positive real numbers is positive real number. In other words a +# x +# = + The product of two negative real numbers is a positive real number. In other words a -- # x -- # = +# The product of two signed real numbers that have opposite signs is a negative real number. In other words + # x -- #=-- and -- # x + #=--

  2. Inverse Operations If one operation will UNDO another operation, the two operations are INVERSE OPERATIONS. 7 + 3 – 3 = 7 Addition & subtraction are INVERSE OPERATIONS. 7 x 2 = 7 2 Multiplication & division are INVERSE OPERATIONS. On line practice: http://www.quia.com/jg/1669.html

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