Expressions Pre-Algebra

Evaluate Expressions

100

14 + 3² - 5

18

200

4x + 9 - b

x = 5

b = 8

21

300

(5-3)² + 4(6+4)

44

400

3(9+5) - b³

^{b = 5}

-83

500

6xy

x = 9

y = 12

648

Simplify Expressions

100

4(x - 9)

4x - 36

200

7(g + 4) - g + 8

6g + 36

300

9(y - 5) - 3y

6y - 45

400

1/2 (8x + 6) - x

3x + 6

500

4(1/2x + 3) - (3x - 5) 

-x + 17 OR 17 - x

Properties

100

What Property is shown: 4 x c = c x 4

Communitive Property 

200

What property is shown below? 

4 + (3+f) = (4+3) + f

associative property

300

5x0 = 0

Zero property of multiplication 

400

What property is shown? Be specific! 

6 x 1 = 6

Identity Property of Multiplication 

500

(-1/4) + (1/4) = 0

Additive Inverse Property 

Factoring Expressions

100

(5y - 25)

5(y - 5)

200

(16v + 36y)

4(4v+9y)

300

(30b + 15n + 5y)

5(6b + 3n + y)

400

(-56x - 28y)

-7(8x + 4y) OR 7(-8x - 4y)

500

(42x - 28y - 56z)

14(3x - 2y - 4z)

Writing Expressions

100

the product of 8 and x plus 9

8x + 9

200

5 more than twice your age

5 + 2a

300

the quotient of 9 and x subtracted from y

y - (9/x)

400

Amanda pays $45 for a gym membership. She then pays a fee of $12 a month. Write an expression to represent how much she would pay for "m" months.  

45 + 12m

500

Lainey earns $75 a week as a pottery instructor plus $15 for every "c" class she teaches. Write an expression to represent how much Lainey earns if she teaches "c" classes.  

75 + 15c