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Evaluating Algebraic Expressions

Evaluating Algebraic Expressions

Assessment

Presentation

Mathematics

7th - 8th Grade

Easy

CCSS
6.EE.A.2C, 7.NS.A.3

Standards-aligned

Created by

Wayground Content

Used 359+ times

FREE Resource

10 Slides • 9 Questions

1

Evaluating Algebraic Expressions

10/07/2020

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Lesson Objective

I can evaluate Algebraic Expressions by replacing variables with their given value and applying Order of Operations

4

Order of Operations

  • Evaluate the expressions inside the grouping symbols.

  • Evaluate all powers.

  • Multiply and divide in order from left to right.

  • Add and subtract in order from left to right.

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Let's work together!

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Open Ended

What is the first step in evaluating the following algebraic expression if w = 5 and v = 3?

 8w2v8w-2v  

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Step 1 in Evaluating an Algebraic Expression!

Substitute, or replace, the variables with its assigned value.

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Multiple Choice

What does our following expression look like after substituting the variables if w = 5 and v = 3?

 8w  2v8w\ -\ 2v  

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 8(3)2(5)8(3)-2(5) 

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 8(5)2(5)8(5)-2(5)  

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 8(5)  2(3)8\left(5\right)\ -\ 2\left(3\right)  

4

 8(3)2(3)8(3)-2(3)  

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Open Ended

What is the second step in evaluating the following algebraic expression if w = 5 and v = 3?

 8w2v8w-2v  

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Step 2 in Evaluating an Algebraic Expression

Perform the operation in the expression using the correct Order of Operations (PEMDAS)!

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Fill in the Blank

Type answer...

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Multiple Choice

Find the value of the following if m = 8:

 3+m3+m  

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5

2

-11

3

11

4

-5

14

15

Multiple Choice

Find the value of the following if a = 2.

 10a310a-3  

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23

2

-23

3

-17

4

17

16

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Multiple Choice

Evaluate the following for x = -2 and y = -11:

 4x25y4x^2-5y  

1

-71

2

-39

3

39

4

71

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Math Response

Evaluate: 12 + 7(-2h - 3) for h = -3

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Evaluating Algebraic Expressions

10/07/2020

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