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Term

Lesson

Definition

Absolute Value

1-3

How far is the number from zero

Additive Inverse

1-4

an integer and its opposites

Algebra

1-2

An expression with variables

Algebraic Expression

1-2

an example 2xn with the Letters in a math problem

Coordinate

1-3

Coordinate matches with the number that is on the number line.

Counterexample

1-2

example that shows that an conjecture is false the property does not apply.

Define A Variable

1-7

Using a letter or something else to stand for an unknown number

Equation

1-7

a sentence with two expressions separated by the =

Evaluate

1-2

find the value of an algebraic expression

Inequality

1-3

Inequality contains these symbols < and >

Integer

1-3

They are negative and positive numbers.

Inverse Operations

1-9

addition and subtraction

Negative Number

1-3

A number less than zero

Numerical Expression

1-2

only numbers and operations

Opposites

1-4

Two numbers with the same absolute value but different signs

Order of Operations

1-2

Finding the value

Powers

1-2

represent repeated multiplication

Solution

1-9

the values

Solve

1-9

finding the value of an equation

Variable

1-2

Is a symbol that represents a number.

Good! Make sure that you are using your own words for the definitions. Grade: 9