Unit 4: Expressions Review

Numerical Expressions

100

(6+4)-(2x4)

2 

200

7+4-(2x3)

5

300

2(5)+4-(2x3)²

-18

400

(10+30/5)/(28/7(2))

2

500

|8-18|²/2(10) 

5

Vocabulary

100

What is the 4 in 4²?

base 

200

What is the 4 in the expression 4x-5?

coefficient

300

What is the 5 in 4x-5? 

constant 

400

What does the x represent in 4x-5? 

variable 

500

Write an algebraic expression using a one variable, one constant, and one coefficient. 

EXAMPLE: 5x+6 

Exponents & Square Roots

100

What is 6^2?

36

200

True or False: 111 is a perfect square. 

False

300

What is the square root of 169? 

13

400

What NUMBER do you need to SQUARE to complete the pattern?

     64         81         100      _______     144

11

500

What is a perfect square before 49 but after 25? 

36

Algebraic Expressions

100

Simplify:

y=3x-5      if x=5

10

200

Simplify:

y=2+x-2     if x=10

18

300

Simplify: 

  y=10x-5      if x=3

25

400

Simplify:

4x+2y³    if x=-2 and y=3

46

500

Simplify: 

p-2r+s²     if p=4, r=5, s=6

30

Negative Exponents

100

-3(2x)^-5

-3/(32x5)

200

2y^-8z

2z/y⁸

300

-5abc^-1

-5ab/c

400

14x^-1/6x²

14/6x³

500

7^-2vw^-8

v/49w⁸