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VocabularySpellingCity provides these eighth grade math word lists as a supplement the standard eighth grade math curriculum. Math terms for the 8th grade are collected into math vocabulary lists used in fun interactive and educational games. Just choose a math area, select a word list, and pick from 25 different learning activities. The material provided was specifically designed to use in an 8th grade math class.

The math vocabulary lists are based on the Common Core Eighth Grade Math Standards. VocabularySpellingCity has selected level-appropriate academic vocabulary that relates to key math concepts for eighth grade students. The games and activities allow 8th graders to build their understanding of key concepts in everything from Algebra to Trigonometry. Eighth grade math teachers can import these math vocabulary lists into their own accounts and then edit or add to them.

Common Core State Standards Overview for Eigthth Grade Math

The Number System
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  • Know that there are numbers that are not rational, and approximate them by rational numbers.
Expressions & Equations
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  • Work with radicals and integer exponents.
  • Understand the connections between proportional relationships, lines, and linear equations.
  • Analyze and solve linear equations and pairs of simultaneous linear equations.
Statistics & Probability
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  • Investigate patterns of association in bivariate data.
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  • Define, evaluate, and compare functions.
  • Use functions to model relationships between quantities.
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  • Understand congruence and similarity using physical models, transparencies, or geometry software.
  • Understand and apply the Pythagorean Theorem.
  • Solve real-world and mathematical problems involving volume of cylinders, cones and spheres.
Source: www.corestandards.org
Eighth Grade The Number System
The Number System - List 1 of 1
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Eighth Grade Expressions & Equations
Expressions & Equations - List 1 of 3
Expressions & Equations - List 2 of 3
Expressions & Equations - List 3 of 3
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Eighth Grade Statistics & Probability
Statistics & Probability - List 1 of 1
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Eighth Grade Functions
Functions - List 1 of 1
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Eighth Grade Geometry
Lines - List 1 of 1
Angles 1 of 2
Angles 2 of 2
Transformation - List 1 of 1
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Click for more information on Math Vocabulary and the Common Core Standards in general. For information pertaining to 8th grade in particular, please refer to the chart above. To preview the definitions, select a list and use the Flash Cards. For help on using the site, watch one of our short videos on how to use the site.

Math is one of the most exacting subjects a student takes in middle school. Understanding and applying complex middle school math vocabulary is often the key to unlocking this challenging subject. Eighth grade students need to have a working knowledge of 8th grade math terms before they can apply them to math principles. Using real life connections and context rich examples enables students to apply 8th grade math vocabulary to these abstract math concepts. From Algebra to Geometry, students are challenged with specialized math terms that are introduced in eighth grade math courses.

The math vocabulary lists are based on the Common Core Eighth Grade Math Standards. Using the targeted vocabulary lists, students can listen to the terms being read to them to get a complete understanding of how to pronounce words that are specific to "math vocab grade 8" before listening to a context-rich sentence that uses the word in a defining sense. Eighth graders can practice their math spelling words and study the corresponding math definitions of all the 8th grade math words on their middle school vocabulary lists as they prepare to transition to high school.

Eighth Grade Math Vocabulary
Words at a Glance:

The Number System

The Number System: expression, convert, value, truncate, rational numbers, approximation, number line, decimal, irrational numbers, expansion

Expressions & Equations

Expressions & Equations: radian, expression, midpoint formula, rational function, exponent, ratio, frequency, synthetic division, step function, logarithm, range, interquartile range, union, hyperbola, domain, parabola, exponential, null, disjunction, variation, pythagorean theorem, run, leg, finite, hypotenuse, absolute value, infinite, slope intercept form, rise, asymptote

Statistics & Probability

Statistics & Probability: probability, matrix, standard deviation, survey, mean, mode, median, certainty, statistical, random


Functions: linear function, graph, qualitative, function, quantitative, equation, ordered pairs, output, input, rule


Lines: corresponding, postulate, circumscribed, concurrent lines, axiom, circumcenter, chord, apothem, arc, ray

Angles: pyramid, isosceles, exterior angles, degrees, angle of elevation, equiangular, scalene, protractor, cosine, tangent, sine, central angle, adjacent, supplementary angles, complementary angles, vertical angles, acute, obtuse, right angle, radian

Transformation: rotation, translation, trigonometric, transversal, functions, tangent, reflection, tessellation, translation, symmetry

For a complete online Math curriculum in Kindergarten Math, First Grade Math, Second Grade Math, Third Grade Math, Fourth Grade Math, Fifth Grade Math, Sixth Grade Math, Seventh Grade Math, or Eighth Grade Math visit Time4Learning.com.

Math Learning Games

Here are some fun Math Games from LearningGamesForKids by grade level: First Grade Math Games, Third Grade Math Games, Fourth Grade Math Games, Fifth Grade Math Games, Addition Math Games, Subtraction Math Games, Multiplication Math Games, or Division Math Games.

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