Mathematics

glossary of terms

  • Cymraeg

    • Mathematics

    glossary of terms


  • Cymraeg
    • Introduction
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    • a.m.
    • abacus
    • acceleration
    • accuracy
    • acute angle
    • add
    • adjacent angle
    • adjacent side
    • afternoon
    • algebra
    • algebraic
    • alternate
    • alternate angle
    • alternate segment
    • analyse
    • angle
    • angle of depression
    • angle of elevation
    • answer
    • anticlockwise
    • apply (make use of)
    • appreciation
    • approximately equal to
    • approximation
    • arc
    • area
    • arithmetic mean
    • arithmetic sequence
    • arrange
    • array
    • arrowhead
    • ascending order
    • associative
    • at random
    • axis
    • axis of symmetry
    • bar chart
    • bar graph
    • bar line graph
    • base
    • base (three dimension)
    • base (two dimension)
    • bearing
    • bias
    • biased
    • BIDMAS
    • bisect
    • block
    • block graph
    • BODMAS
    • bound
    • box and whisker diagram
    • brackets
    • British Summer Time
    • 12 hour clock
    • 24 hour clock
    • calculate
    • calculator
    • cancel a fraction
    • capacity
    • Carroll diagram
    • Cartesian coordinates
    • centilitre
    • centimetre
    • central tendency
    • centre
    • centre of enlargement
    • centre of rotation
    • century
    • certain
    • chance
    • changing the subject
    • check
    • chord
    • circle
    • circle theorems
    • circular
    • circumference
    • class interval
    • classify
    • clockwise
    • closed
    • coefficient
    • collect
    • collecting like terms
    • column graph
    • common denominator
    • common fraction
    • commutative
    • compass
    • compass (to find direction)
    • compass point
    • compensate
    • complement
    • complementary angle
    • complete turn
    • compound event
    • compound interest
    • compound measure
    • compound shape
    • compound solid
    • compute
    • concave
    • concentric
    • conditional probability
    • cone
    • congruent
    • consecutive
    • constant
    • continuous
    • convention
    • conversion graph
    • convex
    • coordinate
    • corner
    • correlation
    • correspond
    • corresponding angles
    • corresponding sides
    • cosine
    • cosine rule
    • count
    • counter
    • criterion
    • cross-section
    • cube
    • cube number
    • cube root
    • cubes
    • cubic
    • cuboid
    • cumulative frequency diagram
    • currency
    • curve
    • curved
    • cyclic quadrilateral
    • cylinder
    • cylindrical
    • data
    • database
    • day
    • days of the week
    • decimal
    • decimal fraction
    • decimal notation
    • decimal number
    • decimal place
    • decimal point
    • decrease
    • deduce
    • degree
    • denominator
    • density
    • dependent event
    • depreciation (in value)
    • descending order
    • diagonal (adj)
    • diagonal (noun)
    • diagram
    • diameter
    • dice
    • difference
    • digit
    • direct proportion
    • directed number
    • direction
    • discount
    • discrete
    • distance chart
    • distance-time graph
    • distribution
    • distributive
    • divide
    • dividend
    • divisibility
    • divisible
    • division
    • divisor
    • dodecahedron
    • domain of a function
    • domino
    • double
    • draw
    • draw to scale
    • East
    • edge
    • empty
    • enlarge
    • enlargement
    • equal
    • equal class interval
    • equal sign
    • equation
    • equidistant
    • equilateral triangle
    • equivalent
    • equivalent fractions
    • error
    • estimate
    • estimate of the mean
    • evaluate
    • even chance
    • even number
    • exchange
    • exchange rate
    • expand
    • expected frequency
    • experiment
    • explain
    • explore
    • express
    • expression
    • extend
    • exterior angle
    • extract
    • face
    • factor
    • factorise
    • fair
    • Fibonacci sequence
    • figure
    • flat
    • fluid ounce
    • FOIL
    • fold (noun)
    • fold (verb)
    • foot
    • form
    • formal argument
    • formula
    • fortnight
    • fraction
    • fractional equation
    • frequency density
    • frequency diagram
    • frequency polygon
    • frequency table
    • function
    • gallon
    • generalise
    • geo strips
    • geometrical
    • geometry
    • golden ratio
    • gradient
    • gram
    • graph
    • greater than
    • greater than or equal to
    • greatest
    • Greenwich Mean Time
    • gross pay
    • group
    • grouped data
    • half
    • half past
    • half turn
    • halve
    • hemisphere
    • heptagon
    • heptagonal
    • hexagon
    • hexagonal
    • highest common factor
    • hire-purchase
    • histogram
    • hollow
    • horizontal
    • hour
    • hundred
    • hundred square
    • hundred thousand
    • hundredth
    • hypothesis
    • identical
    • identity
    • image
    • Imperial ton
    • Imperial unit
    • impossible
    • improper fraction
    • inch
    • increase
    • independent events
    • index notation
    • inequality
    • infinite
    • integer
    • intercept
    • interior angle
    • International Date Line
    • interpret
    • interquartile range
    • intersect
    • intersection
    • inverse
    • inverse operation
    • inverse proportion
    • investigate
    • irrational number
    • irregular
    • isometric paper
    • isosceles triangle
    • justify
    • kilogram
    • kilometre
    • kite
    • laws of indices
    • leap year
    • least
    • lending rate
    • less than
    • less than or equal to
    • likely
    • line
    • line graph
    • line of best fit
    • line of enquiry
    • line of symmetry
    • line symmetry
    • linear
    • linear equation
    • litre
    • location
    • locus
    • long division
    • loss
    • lowest common multiple
    • magnitude
    • maximum
    • mean
    • median
    • mental arithmetic
    • metre
    • metric unit
    • mid-point
    • midday
    • midnight
    • mile
    • millennium
    • milligram
    • millilitre
    • millimetre
    • million
    • minimum
    • minus
    • minute
    • mirror line
    • misleading
    • mixed fraction
    • mixed number
    • modal class
    • mode
    • money
    • months of the year
    • morning
    • multiple
    • multiplicative inverse
    • multiplier
    • multiply
    • mutually exclusive event
    • natural number
    • near double
    • negative integer
    • negative number
    • net
    • net pay
    • night
    • ninth
    • non-linear
    • North
    • North East
    • North West
    • notation
    • nth term
    • number
    • number bond
    • number line
    • number pattern
    • number sentence
    • numbers square
    • numeral
    • numerator
    • object
    • obtuse angle
    • octagon
    • octagonal
    • octahedron
    • odd number
    • open
    • operation
    • operator
    • ordinal number
    • orientation
    • origin (of graph)
    • ounce
    • outlier
    • p.m.
    • parallel
    • parallelogram
    • pattern
    • pay
    • peg
    • peg board
    • penny
    • pentagon
    • pentagonal
    • percentage
    • percentage decrease
    • percentage increase
    • percentage reduction
    • perimeter
    • perpendicular
    • pictogram
    • pictograph
    • pie chart
    • pin board
    • pint
    • place value
    • plane
    • plus
    • point
    • polygon
    • polyhedron
    • positive integer
    • positive number
    • pound (money)
    • pound (weight)
    • power
    • predict
    • primary data
    • prime factor
    • prime factor decomposition
    • prime number
    • prism
    • probability
    • probability scale
    • problem solving
    • product
    • profit
    • proof (evidence)
    • proper fraction
    • property
    • proportion
    • proportional change
    • proportional division
    • protractor
    • pyramid
    • Pythagoras’ theorem
    • quadrant
    • quadratic
    • quadratic equation
    • quadratic expression
    • quadratic formula
    • quadrilateral
    • qualitative
    • qualitative data
    • quantitative data
    • quarter past
    • quarter to
    • quarter turn
    • quartile
    • questionnaire
    • quotient
    • radius
    • random sample
    • range
    • ratio
    • rational number
    • raw data
    • real number
    • rearrange
    • reciprocal (adj)
    • reciprocal (noun)
    • reciprocal function
    • rectangle
    • rectangular
    • rectilinear
    • recurring decimal
    • reduce a fraction
    • reflect
    • reflection
    • reflective symmetry
    • reflex angle
    • region
    • regular
    • relationship
    • relative frequency
    • reliability
    • reliable
    • remainder
    • repeated addition
    • repeated subtraction
    • represent
    • result
    • reverse problem
    • rhombus
    • right angle
    • rod
    • rotate
    • rotation
    • rotational symmetry
    • round off
    • rule
    • ruler
    • salary
    • sample (noun)
    • sample (verb)
    • scale
    • scale factor
    • scalene triangle
    • scatter diagram
    • scatter graph
    • score
    • season
    • second
    • secondary data
    • sector
    • segment
    • select
    • semicircle
    • sensible
    • sequence
    • set
    • set square
    • shade
    • shape
    • short division
    • side
    • sign
    • significant figure
    • similar
    • simple fraction
    • simple interest
    • simplify a fraction
    • simultaneous equations
    • sine
    • sine rule
    • sixth
    • size
    • sketch
    • slightly larger
    • slightly smaller
    • solid
    • solid (shape)
    • solve
    • sort
    • South
    • South East
    • South West
    • speed
    • sphere
    • spherical
    • spinner
    • square (noun)
    • square (verb)
    • square base
    • square centimetre
    • square metre
    • square millimetre
    • square number
    • square root
    • standard form
    • standard index form
    • statistics
    • stem and leaf diagram
    • stone
    • straight
    • straight line
    • strategy
    • stratified sample
    • substitute
    • subtract
    • subtraction by decomposition
    • success rate
    • sum
    • surd
    • surface
    • survey
    • symbol
    • symmetric
    • symmetry
    • synthesize
    • systematic
    • 12 hour clock
    • 24 hour clock
    • tally mark
    • tally mark chart
    • tally mark table
    • tangent (function)
    • tangent (line)
    • tangram
    • temperature
    • temperature chart
    • ten
    • ten thousand
    • terminating decimal
    • tessellation
    • test
    • tetrahedron
    • theorem
    • theoretical probability
    • theory
    • third
    • thousand
    • thousandth
    • three-dimensional
    • tier
    • time
    • tonne
    • total
    • trace
    • transformation
    • transformation of functions
    • translate
    • transversal
    • trapezium
    • trapezium rule
    • travel graph
    • tree diagram
    • trial
    • trial and improvement
    • triangle
    • triangular
    • triangular number
    • trigonometry
    • trigonometry graph
    • turn
    • twelfth
    • two-dimensional
    • two-way table
    • unbiased
    • unequal
    • unequal class interval
    • unit
    • unitary ratio
    • unknown
    • unlikely
    • use
    • valid
    • variable
    • velocity
    • velocity-time graph
    • Venn diagram
    • vertex
    • vertical
    • vertical line graph
    • vertically opposite angles
    • volume
    • vulgar fraction
    • week
    • weekend
    • West
    • whole
    • whole number
    • x-axis
    • y = mx + c
    • y-axis
    • yard
    • year
    • zero