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Writing, Evaluating, and Finding Equivalent Expressions with

Rational Numbers

Do Now:

Lesson 16 Exit Ticket #2

12/2/14Module 2, Lesson 18

Homework: Lesson 18 Problem Set

#'s 1,2,3

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Lesson 16 Exit Ticket

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Lesson 16 Homework Answers S.85

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Changed the sign instead of taking the reciprocal.

S.85

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Review:

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70 + 20x + 15y + 15z

90 + 15x + 10y + 20z

200 + 10x

S.90C

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70 + 20x + 15y + 15z 90 + 15x + 10y + 20z 200 + 10x

S.91

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70 + 20x + 15y + 15z 90 + 15x + 10y + 20z 200 + 10x

S.91

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70 + 20x + 15y + 15z 90 + 15x + 10y + 20z 200 + 10x

S.91

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S.92

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S.93

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S.93

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Closing:• What is an expression? Describe the steps to

evaluating it.• How do you determine if expressions are equivalent?

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