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Pre-Algebra Terms

Pre-algebra builds the foundation for all higher mathematics. It covers arithmetic with integers, fractions, and decimals, introduces variables and basic equations, and develops proportional reasoning. This page collects the key pre-algebra terms and concepts on Mathwords — perfect for middle school students or anyone reviewing the basics.

Algebra Vocabulary & General Concepts49

Core algebra vocabulary, properties, and general mathematical concepts

Angles & Lines47

Types of angles, angle relationships, parallel lines, transversals, and perpendiculars

Area & Perimeter16

2D measurement formulas for area and perimeter of common shapes

Arithmetic Operations & Exponents17

Basic arithmetic operations, exponents, powers, roots, and order of operations

Bounds, Intervals & Ordering9

Upper/lower bounds, bounded sets, intervals, and ordering concepts

Circles21

Circle properties, arcs, sectors, chords, tangent lines, and inscribed angles

Conic Sections16

Ellipses, hyperbolas, circles, and their equations

Coordinate Geometry & Analytic Methods31

Coordinate plane, distance formula, midpoint, analytic geometry, and coordinate systems

Data Display & Visualization10

Histograms, box plots, scatter plots, and data visualization methods

Descriptive Statistics9

Mean, median, mode, standard deviation, variance, and measures of spread

Exponentials & Logarithms21

Exponential functions, logarithms, growth/decay, and their properties

Factors, Multiples & Divisibility8

Factors, multiples, GCF, LCM, prime factorization, and divisibility

Financial Mathematics9

Interest, annuities, present/future value, and financial formulas

Fractions & Decimals12

Fractions, decimals, mixed numbers, and operations with fractions

Functions & Relations51

Function notation, domain, range, types of functions, and function operations

Geometric Transformations16

Reflections, rotations, translations, dilations, and isometries in geometry

Geometry Foundations16

Foundational geometry concepts, planes, measurement units, non-Euclidean geometry, and general vocabulary

Graph Transformations & Symmetry23

Translations, reflections, stretches, compressions, and symmetry of graphs

Linear Equations & Graphs34

Slope, linear equations, systems of equations, and graphing lines

Measurement, Estimation & Notation25

Measurement, scientific notation, rounding, significant digits, and mathematical notation

Number Systems & Properties16

Algebraic properties, number classifications, and equivalence relations

Number Types & Classification22

Types of numbers: integers, rationals, reals, primes, composites, and number classification systems

Platonic Solids & Polyhedra18

Regular polyhedra, Euler's formula for polyhedra, and special 3D shapes

Polynomials & Factoring46

Polynomial operations, factoring, synthetic division, and polynomial theorems

Precalculus Analysis & Methods11

Function analysis, advanced algebra connections, and precalculus methods

Probability & Counting16

Combinations, permutations, probability rules, and counting principles

Probability Fundamentals16

Probability rules, conditional probability, Bayes theorem, and probability calculations

Quadrilaterals & Polygons33

Quadrilaterals, regular polygons, and their properties

Regression & Correlation9

Linear regression, correlation, least squares, and data relationships

Set Theory19

Sets, set operations, Venn diagrams, and set notation

Statistics & Data Displays26

Descriptive statistics, data visualization, distributions, and sampling

Surface Area & Volume46

3D measurement: surface area and volume of prisms, cylinders, cones, spheres, and other solids

Triangles & Congruence56

Triangle types, congruence tests, special lines in triangles, and triangle properties

Variation & Proportion7

Direct, inverse, and joint variation; proportional relationships

All Pre-Algebra Terms Terms A–Z (781)

Frequently Asked Questions

What is pre-algebra?
Pre-algebra is a math course typically taken in grades 6-8 that bridges arithmetic and algebra. It introduces variables, basic equations, and proportional reasoning while strengthening skills with fractions, decimals, and percentages.
What should I know before starting algebra?
Before Algebra 1, you should be comfortable with: operations on fractions and decimals, order of operations (PEMDAS), basic exponent rules, ratios and proportions, and solving simple one-step equations.

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