Expressions and Equations: Building Blocks of Algebra

Multiple Choice

Which of the following is always true about equations but not about expressions?

• They always have an equal sign.

• They can include variables.

• They can include numbers.

• They never have an equal sign.

Multiple Select

Select all the correct definitions based on the parts of expressions and equations.

• A variable is a letter that represents an unknown amount.

• A coefficient is a number multiplied by a variable.

• A constant contains only a number with no variables.

• A term is always a variable.

Multiple Choice

Which expression represents "x cubed less than 7"? 

• x³ - 7
• 3x - 7
• 7 - x³
• 7 - 3x

Multiple Choice

A symbol for a number we don't know yet.

• Variable

• Expression

• Coefficient

• Constant

Multiple Choice

We use letters to represent unknown values. This letter is called a _____________ .

• Constant
• Coefficient
• Term
• Variable

Multiple Choice

Evaluate the expression for

a = 4, b = 5, c = 6.

3(a + 2) - 2b + c

• 7

• 10

• 14

• 17

Multiple Choice

Write an algebraic expression for "five less than 2 times a number."

• 2x + 5

• 2x - 5

• 5 - 2x

• 5(2x)

Math Response

 What is the solution to the equation 
x − 6 = 3?

Type answer here

Correct Answer: 9

Deg^°

Rad

Math Response

What is the value of p in the equation 
p + 6 = 48?

Type answer here

Correct Answer: 42

Deg^°

Rad

Multiple Choice

Identify the EXPONENTIAL form for the following  $$7\cdot7\cdot7$$   

• $$3^7$$  

• $$7^3$$  

Multiple Choice

What is the inverse operation of subtraction?

• Subtraction
• Multiplication
• Division
• Addition

Multiple Choice

What is the inverse operation of division?

• Division
• Multiplication
• Addition
• Subtraction

Multiple Choice

When solving 234 + N =389, what operation would you use to find the answer

• multiplication
• addition
• subtraction
• division

Multiple Choice

a symbol for an unknown value; usually a letter (such as a, x, or y) is the symbol used

• constant

• variable

• coefficient

• term

Multiple Choice

m+13=21

• m=34
• m=8
• m=273
• m=6

Multiple Choice

What equation matches this situation?
Robyn had some video games then bought 4 more.  Now she has a total of 10 games.

• v - 4 = 10
• v + 4 = 10
• 10 - 4 = v
• Answer not Given

Multiple Choice

Two times some number added to eight

• 2x + 4

• 2x + 8

• 10x

• x² + 8

Multiple Choice

Evaluate the expression when a = 4

9a

• 27

• 45

• 36

• 40

Multiple Choice

Evaluate the expression when a =4 and b = 15

a + b

• 20

• 19

• 31

• 17