A

Acute Angle

Acute Triangle

Addend

Algebraic Expression

Angle

Area

Array

Associative Property of Addition

Associative Property of Multiplication

Axis (plural: Axes)

B

Bar Graph

Base

Biased Sample

C

Capacity

Celsius

Center

Centiliter

Centimeter

Central Angle

Certain

Chord

Circle

Circle Graph

Circumference

Closed Figure

Clustering

*Common Denominator

Common Factor

Common Multiple

Commutative Property of Addition

Commutative Property of Multiplication

Compatible Numbers

Compensation

Composite Number

Compound Figure

Cone

Congruent Figures

Congruent Line Segments

Coordinate

Corresponding Parts

Cross Product

Cube

Cylinder

D

Data

*Decimal

Degree

*Denominator

Diagonal

Diameter

Distributive Property of Multiplication over Addition

Distributive Property of

Multiplication over Subtraction

Dividend

Divisible

Divisor

Double-Bar Graph

E

Edge

Elapsed Time

Endpoint

Equally Likely

Equation

Equilateral Triangle

*Equivalent Decimals

*Equivalent Fractions

*Equivalent Ratios

Estimate

Evaluate

Event

Expanded Form

Exponent

F

Face

Fact Family

Factor

Factor Tree

Fahrenheit

Fluid Ounce

Foot

Formula

*Fraction

Frequency

Frequency Table

Function

G

Gallon

Glide Reflection

Gram

Greatest Common Factor

H

Height of a Parallelogram

Height of a Triangle

Hexagon

Histogram

Horizontal Line

I

Identity Property of Addition

Identity Property of Multiplication

Impossible

*Improper Fraction

Inch

Integer

Intersecting Lines

Interval

Inverse Operations

Isosceles Triangle

K

Kilogram

Kilometer

L

Leaf

Least Common Denominator (LCD)

Least Common Multiple (LCM)

Less Likely

Like Denominators

Likely

Line

Line Graph

Line of Symmetry

Line Plot

Line Segment

Liter

M

Mass

Mean

Median

Meter

Mile

Milligram

Milliliter

Millimeter

*Mixed Number

Mode

More Likely

Multiple

N

Negative Integer

Net

Numerator

O

Obtuse Angle

Obtuse Triangle

Octagon

Open Figure

Opposite Integers

Order of Operations

Ordered Pair

Origin

Ounce

Outcome

P

Parallel Lines

Parallelogram

Pentagon

*Percent

Perimeter

Period

Perpendicular Lines

Perspective Drawing

Pictograph

Pint

Place

Plane

Plot

Point

Polygon

Population

Positive Integer

Pound

Power

Power of 10

Prime Factorization

Prime Number

Prism

Probability

Product

Proportion

Pyramid

Q

Quadrant

Quadrilateral

Quart

Quotient

R

Radius (plural: Radii)

Random Sample

Range

Rate

Ratio

Ray

*Reciprocals

Rectangle

Reflection

Remainder

Representative Sample

Rhombus

Right Angle

Right Triangle

Rotation

Round

S

Sample

Sample Space

Scale

Scale Drawing

Scalene Triangle

Side of an Angle

Side of a Polygon

Similar Figures

*Simplest Form

Sphere

Square

Square Unit

Standard Form

Stem

Stem-and-Leaf Plot

Surface Area

Survey

Symmetric about a Line

T

Terms

Tessellate

Tessellation

3-Dimensional Figure

Ton

Transformation

Translation

Trapezoid

Triangle

U

Unit Price

Unit Rate

*Unlike Denominators

Unlikely

V

Value

Variable

Venn Diagram

Vertex (plural: Vertices)

Vertical Line

Volume

W

Weight

Whole Number

Y

Yard

Z

Zero Property of Multiplication