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Lesson 2-4 Pages 75-79

Lesson 2-4 Pages 75-79. Multiplying Integers. What you will learn!. How to multiply integers. How to simplify algebraic expressions. Vocabulary. What you really need to know!. The product of two integers with different signs is negative.

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Lesson 2-4 Pages 75-79

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  1. Lesson 2-4 Pages 75-79 Multiplying Integers

  2. What you will learn! • How to multiply integers. • How to simplify algebraic expressions.

  3. Vocabulary

  4. What you really need to know! The product of twointegers with different signs is negative. The product of twointegers with the same sign is positive.

  5. Example 1: Find each product: 8(-12) = -96 -9(11) = -99

  6. Example 2: Find the product: -4(-16) = 64

  7. Example 3: Find the product: -7(11)(-2) = 154

  8. Example 4: A student missed only 4 problems on a test, each worth 20 points. What is the total number of points missed? A. -5 B. -20 C. 24 D. -80

  9. Example 5: -7(6k) Simplify: (-7•6)k -42k

  10. Example 6: Simplify: 8a(-5b) (8•-5)ab -40ab

  11. Example 7: Evaluate: -3xy if x = -4 and y = 9 -3(-4)(9) 108

  12. Page 77 Guided Practice #’s 4-15

  13. Read: Pages 75-77 with someone at home and study examples!

  14. Homework: Pages 78-79 #’s 16-54 even #’s 59-85 Lesson Check 2-4

  15. Page 727 Lesson 2-4

  16. Lesson Check 2-4

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