Review: Expressions, Equations, & Inequalities

Writing Expressions

100

Write the following expression on your iPad marker board:

6 less than a number squared

What is 

n² - 6

200

Write the following expression on your iPad marker board:

8 more than 3 times a number

What is 

8 + 3n 

or

3n + 8

300

Write the following expression on your iPad marker board:

the product of x and y and z

What is 

xyz

400

Write the following expression on your iPad Marker Board:

the sum of 9 and the product of 2 and a number

What is 

9 + 2n 

or

2n + 9

500

Cade is six years more than two times the age of his brother (use the variable c to represent his brother).

What is an expression that represents Cade's age?

What is 

6 + 2c

or

2c + 6

Writing Inequalities

100

Write the following inequality on your marker board:

10 is less than or equal to x

What is

10 ≤ x

200

Write the following inequality on your iPad marker board:

A number, n, increased by 5 is more than 12

What is 

n + 5 > 12

or 

5 + n > 12

300

Write the following inequality on your iPad marker board:

A number, n, decreased by 8 is more than or equal to 100

What is 

n - 8 ≥ 100

400

Write the following inequality on your iPad marker board:

two less than a number, n, is greater than thirty

What is

n - 2 > 30

500

Write the following inequality on your iPad marker board:

Twice the sum of x and 5 is greater than 10

What is 

2(x + 5) > 10

Solving Equations and Inequalities

100

18 + x = 36

What is "x = 18"?

200

x - 45 = 88

What is "x = 43"?

300

x/3 = 10

What is "x = 30"?

400

15x ≥  75

What is "x ≥ 5"?

500

x/6 < 3

What is

x < 18

Substitution

100

What is 25 + y if y = 10?

What is 

35

200

What is 12x + 3 if x = 3?

What is 

39

300

Which value for x makes the inequality true?

x + 10 > 26

A. x=17

B. x=10

C. x=1

D. x=6

What is 

A. x=17

400

a = 2

b = 6

ab²

What is 

72

500

a=8

b=2

2(a-b)+a

What is 

20

Name that Property

100

a + 5b = 5b + a

What is 

the Commutative Property

200

(2 x 3) x 10 = 2 x (3 x 10)

What is 

the Associative Property

300

3 + 2 + 7 = 2 + 7 + 3

What is 

the Commutative Property

400

5(x + y) = 5x + 5y

What is 

the Distributive Property

500

6 + 0 = 6

Identity Property

Potpourri

100

A(n) _________________ is an unknown part of an equation, represented by a letter.

What is a variable?

200

Solve the following using what you know about the distributive property:

2(x - 2)

What is 

2x - 4

300

What are the 4 steps that we follow when solving expressions (order of operations)?

What is 

1. Grouping Symbols

2. Exponents

3. Multiply/Divide (whatever comes first from left to right)

4. Add/Subtract (whatever comes first from left to right)

400

Simplify. 

20 - 4² + (3 - 1)

What is 

6

500

Solve.

x/4 = 5

What is

x = 20