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RETAKE Ch. 3 QUIZ Algebraic Expressions and Properties
供稿人: Stevens
1.)

Evaluate the expression for x=4 and y = 3

using GEMDAS and/or Properties.  Explain

each step.

=

x + y + 4 - 5

2.)

Evaluate the expression for x=4 and y = 3

using GEMDAS and/or Properties.  Explain each

step.

=

20

x
+  3y  + 17

3.)  Write the phrase as an expression, and

select the best answer choice:

9 less than a number y.

 9y

 y-9

 9+y

 9÷y

4.)  Write the phrase as an expression, and select

the best answer choice.

A number n plus the difference of 8 and n.

 n + (8÷n)

 n + (8-n)

 8n÷n

 8n + n

5.)  What property is shown below?  Explain

you answer choice.

4 + m = m + 4

Identity Property of Addition

 

Commutative Property of Addition

Associative Property of Addition

Distributive Property

6.)  What property is shown below?  Explain

you answer choice.

8 (1) = 8

Identity Property of Multiplication

 

Commutative Property of Addition

Associative Property of Multiplication

Distributive Property

7.)  What property is shown below?  Explain

you answer choice.

3(x + 4) = 3x + 12

Identity Property of Addition

 

Commutative Property of Addition

Associative Property of Addition

Distributive Property of Multiplication

Over Addition

8.)  What property is shown below?  Explain

you answer choice.

6•(3•w) = (6•3)•w

Identity Property of Multiplication

 

Commutative Property of Multiplication

Associative Property of Multiplication

Distributive Property

 of Multiplication over Addition

9.)  Simplify the expression, and explain each step.

(Select the best answer choice.)

1

4

•  g • 8

4g

 1•g   or  g

 2÷g

2g

10.)  Simplify the expression, and explain each step.

(Select the best answer choice.)

5n + 18.5 - 3n + 2.5

 24n

 2n + 21

 3n + 21 

 23n

11.)  Pizzas are on sale today.  The price is

only $5 for each pizza purchased.

 

Write an expression to calculate your cost using the

variable n for the number of pizzas you purchase:

 

 

Now use your expression to fill in the table:

 

 

Number of Pizzas (n)

10

2

3

$
$
$
Total Cost ($)
.00
.00
.00
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