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Sections 3.6 – 3.7

Sections 3.6 – 3.7. Multiplying and Dividing Integers. Multiplying or Dividing Integers. SAME SIGN  POSITIVE DIFFERENT SIGNS  NEGATIVE ( + ) • ( + ) = + ( - ) • ( - ) = + ( + ) • ( - ) = - ( - ) • ( + ) = -. Definitions. Inverse operations: What undoes addition?

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Sections 3.6 – 3.7

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  1. Sections 3.6 – 3.7 Multiplying and Dividing Integers

  2. Multiplying or Dividing Integers • SAME SIGN  POSITIVE • DIFFERENT SIGNS  NEGATIVE • ( + ) • ( + ) = + • ( - ) • ( - ) = + • ( + ) • ( - ) = - • ( - ) • ( + ) = -

  3. Definitions • Inverse operations: • What undoes addition? • What undoes multiplication? An operation that undoes the original operation. subtraction Division.

  4. Multiplication and Division with 0. = 0 Which one of these is not correct? = 0 = 0 undefined = 0

  5. Find each Product • - 8 (7) = • -4 ( -6) = • (3) • (8)= • 6 • - 3 = -56 24 24 18

  6. Homework : • Extra Practice 3.6 (odds!) and 3.7 (odds!)

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