Mathematical Terms and Definitions

An A-Z Glossary of Mathematical Terms

Search for Terms and Definitions

Here is our glossary of mathematical terms and definitions. If there's a widget sign (), then there's an interactive game or widget on the page.

A

• acute angle ()
• adding fractions
• addition basics
• addition (long addition) ()
• addition rule (probability)
• addition rule (on tree diagrams)
• adjacent
• algebra (expressions)
• algebra (terms)
• algebra (like terms)
• algebra (how to add letters)
• algebra (how to subtract letters)
• algebra (how to multiply letters)
• algebra (how to divide letters)
• algebra (how to add terms)
• algebra (how to subtract terms)
• algebra (how to multiply terms)
• algebra (how to divide terms)
• algebra (how to expand brackets)
• algebra (expanding single brackets using the grid method)
• algebra (how to expand double brackets)
• algebra (expanding double brackets using the grid method)
• algebra (factors)
• algebra (greatest common factor)
• algebra (factoring an expressions)
• algebra (how to collect like terms)
• algebra (how to identify like terms)
• algebra (how to add like terms)
• algebra (how to subtract like terms)
• algebraic fractions
• algebraic fractions (adding algebraic fractions)
• algebraic fractions (subtracting algebraic fractions)
• algebraic fractions (multiplying algebraic fractions)
• algebraic fractions (dividing algebraic fractions)
• algebraic fractions (simplifying algebraic fractions)
• algebraic fractions (power of algebraic fractions)
• algebraic fractions (reciprocal of algebraic fractions)
• algebra (multiplying expressions)
• angles ()
• angles (degrees)
• angles (radians)
• angles (types of) ()
• angles (acute angle) ()
• angles (right angle)
• angles (obtuse angle) ()
• angles (straight angle)
• angles (reflex angle) ()
• angles (full angle)
• angles (complementary angle)
• angles (explementary angles)
• angles (supplementary angle)
• angles (radians)
• angles (finding the sum of the interior angles of a polygon)
• angles (finding the interior angle of a regular polygon)
• angles (exterior angles of a polygon)
• angles (finding the exterior angle of a regular polygon)
• angles (sum of interior and exterior angle equals 180 degrees)
• angular coordinate

• area (of a circle) ()
• area (of a circle using diameter)
• area (of a sector of a circle)
• area (of a sector of a circle in radians)
• area (of an ellipse) ()
• area (of a parallelogram) ()
• area (of a trapezoid) ()
• area (of a triangle) ()
• area (of a triangle using trigonometry)
• area (of a rectangle) ()
• area (of a square) ()
• arithmetic (fundamental theorem of)
• arithmetic mean
• arithmetic with even and odd numbers
• arithmetic with negative numbers
• average (explained) ()
• average (mean) ()
• average (mode) ()
• average (median) ()

B

• bar chart (explained)
• bar chart (how to create)
• bar chart (how to read from)
• bar charts (types of data)
• bases
• BODMAS

C

• Cartesian coordinates ()
• Cartesian coordinates (draw a point)
• Cartesian coordinates (read off a point)
• Cartesian cooordinates (converting Cartesian to polar coordinates)
• Cartesian coordinates (coverting to Cartesian from polar)
• circles
• circles (finding the area of)
• circles (circumference of a circle)
• circles (circle theorems)
• circles (circle theorem: tangent radius 90 degrees)
• circles (circle theorem: two radii make an isosceles triangle)
• circles (circle theorem: perpendicular bisector of a chord passes through center)
• circles(circle theorem: angle at center twice at circumference)
• circles (circle theorem: angle in semicircle 90 degrees)
• circles (circle theorem: angles in same segment are equal)
• circles (circle theorem: opposite angles in a cyclic quadrilateral add up to 180 degrees)
• circles (circle theorem: tangents from same point equal)
• circles (circle theorem: angle in alternate segment is equal)
• circles (area of a sector of a cirle)
• circles (area of a sector of a circle in radians)
• circles (length of an arc)
• circles (length of an arc in radians)
• circles (basic equation of a circle)
• circles (equation of a circle)
• circles (equation of a circle in general form)
• circles (finding center and radius from equation)
• circumference
• circumference of a circle
• circumference of a circle (using radius)
• coefficients
• composite numbers ()
• composite function
• composite function (finding a)
• composite function (evaluating a)
• complementary event
• completing the square (introduction)
• completing the square (how to complete the square)
• cone (finding the volume of) ()
• constants
• continuous data
• converting percentages to decimals
• converting percentages to fractions
• converting mixed fractions to improper fractions
• converting improper fractions to mixed fractions
• coordinates (Cartesian)
• coordinates (polar)
• cosine function
• cube (finding the volume of) ()
• cumulative frequency table (explained)
• cumulative frequency table (how to make)
• cumulative grouped frequency table (explained)
• cumulative grouped frequency table (how to make)
• cylinder (finding the volume of) ()

D

• data (explained)
• data (continuous)
• data (discrete)
• data (qualitative)
• data (quantitative)
• data (types of)
• degrees
• denominator

• dependent event
• dependent event (on tree diagrams)
• diameter
• diameter (finding from the radius)
• diameter (finding from the circumference)
• diameter (finding from the area)
• difference of squares
• discrete data
• distance formula
• dividing fractions
• division basics
• division (long division) ()
• division (long division with remainder)
• division (long division with decimals)

E

• ellipses
• ellipse (finding the area of)
• engineering notation
• engineering notation (convert to)
• engineering notation (convert number less than 1 to)
• engineering notation (convert from)
• engineering notation (convert from when negative number)
• enlargement
• enlargement (how to enlarge a shape)
• enlargement (fractional scale factor)
• enlargement (negative scale factor)
• enlargement (describing an enlargement)
• enlargement (describing an enlargement with negative scale factor)
• equivalent fractions
• equations (what are equations?)
• equations (linear) (explained) ()
• equations (linear, general form)
• equations (linear, slope point form)
• equations (quadratic) (explained) ()
• equations (simultaneous) (definition)
• equations (simultaneous) (methods for solving)
• equations (simultaneous) (using elimination)
• equations (simultaneous) (using elimination where coefficients differ)
• equations (simultaneous) (using substitution)
• equations (simultaneous) (using a graph)
• equations (solve equations with brackets)
• equations (solve equations with two sets of brackets)
• equilateral triangles

• even numbers ()
• exponents
• exponent (exponent of −1)
• exponent (exponent of −1 in algebra)
• exponents (laws of)
• exponents in algebra (laws of)
• exponents (finding negative exponents)
• exponents (finding negative exponents in algebra)
• exponents (finding a power of a power)
• exponents (finding a power of a power in algebra)
• exponents (finding a power of a product)
• exponents (finding a power of a product in algebra)
• exponents (finding a power of a fraction)
• exponents (finding a power of an algebraic fraction)
• expressions

F

• factor
• factors (finding)
• factors (algebra)
• factors (finding in algebra)
• factor (greatest common)
• famous mathematicians (Euclid)
• famous mathematicians (Pythagoras)
• famous mathematicians (Rene Descartes)
• famous mathematicians (Archimedes)

• FOIL method
• fractions (overview)
• fractions (adding fractions)
• fractions (equivalent fractions)
• fractions (subtracting fractions)
• fractions (multiplying fractions)
• fractions (dividing fractions)
• fractions (simplifying fractions)
• fractions (converting fractions to a decimal)
• fractions (converting fractions to a decimal)
• fractions (converting fractions to a percentage)
• fractions (converting fractions to a decimal or a percentage)
• fractions (converting mixed fractions to improper fractions)
• fractions (converting improper fractions to mixed fractions)
• fractions (denominator)
• fractions (expressing one number as a fraction of another)
• fractions (finding the fraction of a number)
• fractions (finding the reciprocal of a fraction)
• fractions (proper)
• fractions (improper)
• fractions (mixed)
• fractions (numerator)
• frequency table (explained)
• frequency table (how to make)
• frequency table (finding the mean)
• frequency table (finding the median)
• frequency table (finding the mode)
• frequency table (finding the range)
• function (what is a function?)
• function (evaluating a)
• function (composite function)
• function (inverse function)
• function (finding the inverse of a function)
• function (finding the inverse of a function using a graph)

G

• geometry
• geometry (polygons)
• geometry (interior angles of polygons)
• geometry (triangles)
• geometry (types of triangles) ()
• geometry (equilateral triangles) ()
• geometry (isosceles triangles) ()
• geometry (scalene triangles) ()
• geometry (interior angles of a triangle)
• geometry (finding a missing angle in a triangle)
• geometry (circles)
• geometry (circumference of a circle)
• geometry (circle theorems)
• geometry (circle theorem: tangent radius 90 degrees)
• geometry (circle theorem: two radii make an isosceles triangle)
• geometry (circle theorem: perpendicular bisector of a chord passes through center)
• geometry (circle theorem: angle at center twice at circumference)
• geometry (circle theorem: angle in semicircle 90 degrees)
• geometry (circle theorem: angles in same segment are equal)
• geometry (circle theorem: opposite angles in a cyclic quadrilateral add up to 180 degrees)
• geometry (circle theorem: tangents from same point equal)
• geometry (circle theorem: angle in alternate segment is equal)
• graphs (the parts of a graph)
• graphs (bar charts and line graphs) ( interactive widget)
• graphs (create a pie chart) ( interactive widget)
• graphs (Cartesian coordinates)
• graphs (polar coordinates)
• graphs (coverting Cartesian coordinates to polar coordinates)
• graphs (coverting polar coordinates to Cartesian coordinates)
• greatest common factor
• greatest common factor (finding the)
• greatest common factor (algebra)
• greatest common factor (finding in algebra)
• gruped frequency table (explained)
• grouped frequency table (finding the mean)
• grouped frequency table (finding the median group)
• grouped frequency table (finding the mode group)
• grouped frequency table (how to make)

H

• hypotenuse

I

• improper fractions
• integers
• interquartile range (explained)
• interquartile range (finding the)
• inverse function
• inverse function (finding the inverse of a function)
• inverse function (finding the inverse of a function using a graph)
• inverse operations
• isosceles triangles
• isosceles triangles (finding a missing angle)

J

What? Nothing in Mathematics starts with a J.
Unbelievable!

K

L

• least common multiple
• least common multiple (finding the)
• linear equations ()
• linear equations (general form)
• Linear equations (slope intercept form)
• Linear equations (slope point form)
• linear equations (finding the y-intercept)
• linear equation (between two points)
• linear equations (calculating the slope)
• long addition ()
• long division ()
• long division with remainder
• long division with decimals
• long multiplication ()
• long multiplication with decimals
• long subtraction ()
• lower quartile

M

• mean (explained)
• mean (finding the)
• median (explained)
• median (finding the)
• midpoint formula ()
• mixed fractions
• mode (explained)
• mode (finding the)
• multiple
• multiple (least common)
• multiplication basics
• multiplication (long multiplication) ()
• multiplication (long multiplication with decimals)
• multiplication rule (probability)
• multiplication rule (on tree diagrams)
• multiplying fractions

N

• natural numbers
• negative numbers
• negative numbers and arithmetic

• number line
• number line (for addition)
• number line (for subtraction)
• numbers (even numbers) ()
• numbers (odd numbers) ()
• numbers (natural numbers)
• numbers (whole numbers)
• numbers (integers) ()
• numbers (prime numbers) ()
• numbers (square numbers)
• numerator

O

• obtuse angle ()
• odd numbers ()
• operations
• opposite
• order of operations
• origin

P

• parallelograms
• parallelogram (finding the area of)
• pi
• pie chart ( interactive widget)
• percentages ()
• percentage changes
• percentages (converting percentages to decimals)
• percentage (converting percentages to fractions)
• percentages (how to express one number as a percentage of another)
• percentages (finding a percentage change)
• percentages (finding the percentage of a number)
• perfect square trinomials
• place value
• polar coordinates
• polar coordinates (draw a point)
• polar coordinates (read off a point)
• polar coordinates (converting from Cartesian coordinates)
• polar coordinates (coverting to Cartesian from polar)
• polygons (geometry)
• positive numbers
• powers
• powers (base)
• powers (exponent)
• powers (how to multiply powers)
• powers (how to multiply powers in algebra)
• powers (how to divide powers)
• powers (how to divide powers in algebra)
• powers of 10
• prime numbers ()
• probability (what is probability)
• probability (finding a probability)
• probability (addition rule)
• probability (multiplication rule)
• probability (complementary event)
• probability (dependent event)
• probability (independent event)
• probability (mutually exclusive event)
• probability (tree diagram explained)
• probability (how to draw a tree diagram)
• probability (multiplication rule on tree diagrams)
• probability (addition rule on tree diagrams)
• probability (dependent events on tree diagrams)
• proper fractions

• Pythagoras' theorem ()
• Pythagoras' theorem (finding the hypotenuse)
• Pythagoras' theorem (finding a shorter side)

Q

• quadratic equations (what are quadratic equations?) ()
• quadratic equations (how to solve)
• quadratic equations (solve using factoring)
• quadratic equations (solve using factoring when a ≠ 1)
• quadratic equations (solve using a graph)
• quadratic equations (solve using the quadratic formula)
• quadratic equations (solve using a difference of squares)
• qualitative data
• quantitative data
• quartile (explained)
• quartile (lower)
• quartile (methods for finding)
• quartile (upper)

R

• radial coordinate
• radians
• radius
• radius (finding the radius from the area)
• radius (finding the radius from the diameter)
• radius (finding the radius from the circumference)
• range (explained)
• range (finding the)
• reciprocals
• reciprocals (of a fraction)
• reciprocals (of an algebraic fraction)
• rectangles
• rectangle (finding the area of) ()
• reflection
• reflection (common reflections)
• reflection (how to reflect a shape)
• reflection (describing a reflection)
• reflection (reflect a shape in x-axis using cartesian coordinates)
• reflection (reflect a shape in y-axis using cartesian coordinates)
• reflection (reflect a shape in y=x using cartesian coordinates)
• reflection (reflect a shape in y=-x using cartesian coordinates)
• reflex angle ()
• right angle
• right triangle
• right triangle (adjacent)
• right triangle (hypotenuse)
• right triangle (opposite)
• rotation
• rotation (common rotations)
• rotation (how to rotate a shape)
• rotation (describing a rotation)
• rounding numbers ()

S

• scale factor
• scientific notation
• scientific notation (convert to)
• scientific notation (convert number less than 1 to)
• scientific notation (convert from)
• scientific notation (convert from when negative number)
• simplifying fractions
• simultaneous equations (what are simultaneous equations)
• simultaneous equations (methods for solving)
• simultaneous equations (using elimination)
• simultaneous equations (using elimination where coefficients differ)
• simultaneous equations (using substitution)
• simultaneous equations (using a graph)
• slope
• slope (finding from linear equation)
• slope (finding from linear equation in general form)
• slope (finding from linear equation in slope-point form)
• sine function
• slope (finding the slope of a line) ()
• slope (finding the slope between two points)
• sphere (finding the volume of) ()
• straight angle
• squares
• square numbers
• square root
• square (finding the area of)
• subtraction basics
• subtraction (long subtraction) ()
• subtracting fractions

T

• terms
• transformations
• translation
• translation (how to translate a shape)
• translation (describing a translation)
• translation (how to translate a shape in Cartesian coordinates)
• trapezoids
• trapezoid (finding the area of) ()
• triangles
• triangle (finding the area of) ()
• triangle (types of) ()
• triangles (equilateral triangles) ()
• triangles (isosceles triangles) ()
• triangles (scalene triangles) ()
• triangles (interior angles of a triangle)
• triangles (finding a missing angle in a triangle)
• triangles (finding a missing angle in an isosceles triangle)
• trigonometry (cosine function) ()
• trigonometry (sine function) ()
• trigonometry (tangent function) ()
• trigonometry (using the sine function to find the opposite)
• trigonometry (using the sine function to find the hypotenuse)
• trigonometry (using the sine function to find the angle)
• trigonometry (using the cosine function to find the adjacent)
• trigonometry (using the cosine function to find the hypotenuse)
• trigonometry (using the cosine function to find the angle)
• trigonometry (using the tangent function to find the opposite)
• trigonometry (using the tangent function to find the adjacent)
• trigonometry (using the tangent function to find the angle)
• trigonometry (finding the area of a triangle using trigonometry)
• types of angles ()
• types of data
• types of triangles ()
• types of whole numbers

U

• upper quartile

V

• variables
• volume of a cone ()
• volume of a cube ()
• volume of a cylinder ()
• volume of a sphere ()

W

• whole numbers

W

• x-axis (explained)
• x-coordinate (explained)
• x-intercept (of a function)

Y

• y-axis (explained)
• y-coordinate (explained)
• y-intercept
• y-intercept (finding the) ()
• y-intercept (finding from linear equation) ()
• y-intercept (finding from linear equation in general form)
• y-intercept (finding from linear equation in slope point form)
• y-intercept (of a function)

Z

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