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A mathematical phrase. It does not contain an equals sign.
Expression
An expression that consists of variables, numbers, and operations.
Variable Expression
Numbers larger than zero
Positive Numbers
The sum of the values in a data set divided by the number of values in the data set. Often referred to as the average.
Mean
The value that occurs most often in a data set.
Mode
An expression that consists of only numbers and operators.
Numerical Expression
The difference between the greatest and least values in a set.
Range
The middle value of a set when they are arranged in numerical order.
Median
The four quarters of a coordinate plane.
Quadrants
Moving in the up and down direction.
Vertical
The result of repeated multiplication of the same term. It is represented with a base number and an exponent.
Power
Moving in the right and left direction.
Horizontal
Expressions that have the same value.
Equivalent Expressions
A collection of rules that reflect conventions about which procedures to perform first in order to evaluate a given mathematical expression.
Order of Operations
A two-dimensional plane formed by the intersection of a horizontal line called the x-axis and a vertical line called the y-axis. The lines intersect each other at zero.
Coordinate Plane. Cartesian Plane. XY Plane.
Numbers that can be written without fractional or decimal parts. They can be negative, zero, or positive.
Integers
In a power, the number that is being multiplied.
Base
The action of replacing something with another thing.
Substitution
A value that depends on the context of the expression. Typically we use a single letter to represent it.
Variable
The non-negative value of a term regardless of its sign. It is to be thought about as being a distance away from zero on the number line.
Absolute Value
Numbers that, when added to another number, yield zero.
Additive Inverses
Limitless, endless, extending indefinitely.
Infinite
The intersection of the y-axis and x-axis on a coordinate plane.
Origin
The positive integers. Sometimes called the counting numbers.
Natural Numbers
To determine the value of something.
Evaluate