Equations and Expressions

How could you express the sum of 6 and x?

• x + 6

• 6 ÷ x

• x + 4

• 6x

Identify the variables in the following expression:
4x + 2y - 6

• 4, 2, -6

• 4 and x

• x and y 

• -6

What is the operation of the following expression?  

• multiplication 

• addition 

• subtraction 

• division 

Evaluate 8 + g when g=28.

• 36

• 288

• 20

• 828

Which value is equivalent to the expression 5³?

• 15

• 25

• 125

• 625

Translate the following sentence into an inequality:
x is less than 5 more than 3½

• x > 3½ x 5

• x < 3½ + 5

• x < 3½ x 5

• x > 3½ + 5

An equation is shown. What is the value of y to make the equation true?
5 = y - 2½

• y = 3½

• y = 2½

• y = 5

• y = 7½

What is a different way to express
 (x + 3)² ?

• x² + 3²

• x + x + 3 + 3

• (x + 3) * (x + 3)

• x + 9

Select all the equations where x = 3 is a solution.

• x − 3 = 0

• 1 + x = 2

• 6 = 2x

• 9 − x = 3

• x² = 9

Mai poured 2.6 liters of water into a partially filled pitcher. The pitcher then contained 10.4 liters. Write an equation that represents this situation.

• x − 2.6 = 10.4

• x + 2.6 = 10.4

• 2.6 + 10.4 = x

• 2.6 = 10.4 + x