Math Pre-Algebra Overview

Algebraic Vocabulary

Equations

Expressions

Constants

Variables

Coefficients

Terms

Equation

=

If it has an equal sign,

it is an equation!

3x + 5 = 17

Expression

Constant

A number BY ITSELF

is a constant

23

Variable

If it is a letter,

then it is a variable

x, y, z

Coefficient

If it is a number next to a letter,

it is a coefficient

3x

Term

If there is a + or - sign in between,

it is a term

3x + 11 - 7y

Multiple Choice

In the expression 3x + 8, what is the coefficient?

• 8

• 3

• x

Multiple Choice

In the expression 9x + 4, what is the variable?

• 9

• x

• 4

Multiple Choice

How many terms are there?

x - 3y + 88

• 1

• 2

• 3

Multiple Choice

In the expression

3x + 7 + y + 32,

what are the constants?

• x and y

• 7 and 32

• 3, 7 and 32

Multiple Choice

equivalent

• the same

• equal

• identical

• all of the above

Multiple Choice

sum

• the answer to a division question

  $$\div$$

• the answer to a multiplication question

  $$\times\ \ \ \cdot$$

• the answer to a subtracation question

  $$-$$

• the answer to an addition question

  $$+$$

Multiple Choice

What is the sum of 10 and 20?

• 30

• 10

• 2

• 200

Multiple Choice

difference

• the answer to a division question

  $$\div$$

• the answer to a subtraction question

  $$-$$

• the answer to an addition question

  $$+$$

• the answer to a multiplication question

  $$\times\ \ \cdot$$

Multiple Choice

What is the difference of 75 and 25?

• 50

• 3

• 1,875

• 100

Multiple Choice

product

• the answer to a multiplication question

  $$\times\ \ \cdot$$

• the answer to a division question

  $$\div$$

• the answer to a subtraction question

  $$-$$

• the answer to an addition question

  $$+$$

Multiple Choice

What is the product of 60 and 12?

• 720

• 48

• 5

• 72

Multiple Choice

quotient

• the answer to a multiplication question

  $$\times\ \ \cdot$$

• the answer to a subtraction question

  $$-$$

• the answer to a division question

  $$\div$$

• the answer to an addition question

  $$+$$

Multiple Choice

What is the quotient of 72 and 9?

• 8

• 63

• 81

• 648

Multiple Choice

An equation is ....

• An equal sign

• A variable

• A mathematical sentence that uses an equal sign