Mathitat
Serious maths,gently done.
Number
Absolute valueAdditive inverseAscending orderAssociative propertyCommon factorCommon multipleCommutative propertyComposite numberCube numberCube rootDecimalDecimal placeDenominatorDescending orderDifferenceDigitDivisibilityEquivalent fractionError intervalEven numberExponentFactorFactor pairFractionHighest common factor (HCF)Greatest common factor (GCF)Greatest common factor (GCF)Improper fractionIntegerInteger operation rulesInverse operationIrrational numberLower boundLowest common multiple (LCM)Least common multiple (LCM)Least common multiple (LCM)Mixed numberMultipleMultiplicative inverseNatural numberNegative numberNumber lineNumeratorOdd numberOperationOrder of operationsPercentagePlace valuePowerPrimePrime factorPrime factorisationPrime factorizationPrime factorizationProductQuotientRational numberRationaliseRationalizeRationalizeReciprocalRecurring decimalRemainderRepeating decimalSignificant figureSquare numberSquare rootStandard formScientific notationScientific notationSumSurdRadicalRadicalTerminating decimalUpper bound
Algebra
Arithmetic sequenceAsymptoteAxisCoefficientCommon differenceComplete the squareComposite functionConstantCoordinateCoordinate planeCubicDifference of two squaresDistributive propertyEquationEquation of a lineExpressionFormulaFunctionFunction notationGeometric sequenceGradientSlopeSlopeIdentityInequalityInterceptInverse functionIterationLike termsLinearMidpointnth termOriginParabolaQuadrantQuadraticQuadratic formulaRootSequenceSimultaneous equationsSystem of equationsSystem of equationsSlope-intercept formSolutionSubject of a formulaTermTurning pointVariable
Ratio & proportion
Best buyCompound interestCompound measureConstant of proportionalityCurrency conversionDensityDepreciationDirect proportionDiscountExponential growth and decayInverse proportionMultiplierPercentage changeProfit and lossProportionProportional relationshipRateRatioSales taxSimple interestSpeedUnit rateUnitary method
Geometry & measures
Acute angleAcute-angled triangleAlternate anglesAngleArcAreaBearingBisectorCapacityCentimetreChordCircumferenceCo-interior anglesConeCongruentCorresponding anglesCosineCross-sectionCubeCuboidCylinderDecagonDegreeDiagonalDiameterEdgeElevationEnlargementDilationDilationEquilateral triangleExterior angleFaceGramHeptagonHexagonHypotenuseInterior angleIrregular polygonIsosceles triangleKilogramKilometreKiteLine of symmetryLitreLiterLitreLocusMagnitudeMassMetreMeterMetreMillilitreMillimetreNetNonagonObtuse angleObtuse-angled triangleOctagonParallelParallelogramPentagonPerimeterPerpendicularPiPlanPlane of symmetryPolygonPrismPyramidPythagoras' theoremPythagorean theoremPythagorean theoremQuadrilateralRadiusRectangleReflectionReflex angleRegular polygonRhombusRight angleRight-angled triangleRight triangleRight triangleRigid transformationRotationRotational symmetryScale drawingScale factorScalene triangleSectorSegmentSemicircleSimilarSineSphereSquareSurface areaSymmetryTangentTetrahedronTonneTransformationTranslationTransversalTrapeziumTrapezoidTrapezoidTrigonometryUnit conversionVectorVertexVertically opposite anglesVolume
Probability
BiasedComplementConditional probabilityEventExhaustiveExpected frequencyExperimental probabilityFair and unfairFrequency treeIndependent eventsIntersectionLikelihoodMutually exclusiveOutcomeProbabilityProbability scaleRelative frequencySample spaceSetTheoretical probabilityTree diagramUnionVenn diagram
Statistics
AverageBar chartBar graphBar graphBox plotClass intervalContinuous dataCorrelationCumulative frequencyDataDiscrete dataDot plotFrequencyFrequency densityFrequency polygonHistogramInterquartile rangeLine of best fitMeanMedianModal classModeOutlierPictogramPictographPictographPie chartPopulationPrimary dataQualitative dataQuantitative dataQuartileRangeSampleSamplingScatter graphScatter plotScatter plotSecondary dataSpreadStem-and-leaf diagramTallyTime series graphTwo-way table
Command words
Octagon
Practise thisA polygon with 8 straight sides.
In Español · sample
OctágonoUn polígono de 8 lados rectos.