Mathitat
Serious maths,
gently done.
Glossary

Number

Common factorCommon multipleComposite numberCube numberCube rootDecimalDecimal placeDenominatorDifferenceDigitDivisibilityEquivalent fractionError intervalEven numberExponentFactorFactor pairFractionHighest common factor (HCF)Improper fractionIndexIntegerInverse operationIrrational numberLower boundLowest common multiple (LCM)Mixed numberMultipleNegative numberNumeratorOdd numberOperationOrder of operationsPercentagePlace valuePowerPrimePrime factorPrime factorisationProductQuotientRational numberRationaliseReciprocalRecurring decimalRemainderSignificant figureSquare numberSquare rootStandard formSumSurdTerminating decimalUpper bound

Algebra

Arithmetic sequenceAxisCoefficientCommon differenceComplete the squareComposite functionConstantCoordinateDifference of two squaresEquationEquation of a lineExpressionFormulaFunctionGeometric sequenceGradientIdentityInequalityInterceptInverse functionLike termsMidpointnth termOriginParabolaQuadraticQuadratic formulaRootSequenceSimultaneous equationsSolutionSubject of a formulaTermTurning pointVariable

Ratio & proportion

Best buyCompound interestCompound measureDensityDepreciationDirect proportionInverse proportionMultiplierPercentage changeProportionRateRatioSpeedUnitary method

Geometry & measures

Acute angleAlternate anglesAngleArcAreaBearingBisectorCapacityChordCircumferenceCo-interior anglesConeCongruentCorresponding anglesCosineCross-sectionCuboidCylinderDegreeDiagonalDiameterEnlargementEquilateral triangleExterior angleHypotenuseInterior angleIsosceles triangleLine of symmetryLocusMagnitudeMassObtuse angleParallelPerimeterPerpendicularPolygonPrismPyramidPythagoras' theoremQuadrilateralRadiusReflectionReflex angleRegular polygonRight angleRotationRotational symmetryScale factorScalene triangleSectorSegmentSimilarSineSphereSurface areaSymmetryTangentTransformationTranslationTrigonometryVectorVertexVertically opposite anglesVolume

Probability

BiasedComplementConditional probabilityEventExhaustiveExpected frequencyIndependent eventsIntersectionMutually exclusiveOutcomeProbabilityRelative frequencySample spaceTheoretical probabilityTree diagramUnionVenn diagram

Statistics

AverageBar chartClass intervalContinuous dataCorrelationCumulative frequencyDataDiscrete dataFrequencyFrequency densityFrequency polygonHistogramInterquartile rangeLine of best fitMeanMedianModal classModeOutlierPictogramPie chartPopulationPrimary dataQualitative dataQuantitative dataQuartileRangeSampleScatter graphSecondary dataStem-and-leaf diagramTallyTwo-way table

Command words

CalculateCompareCompleteConstructDescribeDetermineDrawEstimateEvaluateExpandExplainFactoriseFindGive a reasonIdentifyInterpretJustifyMeasurePlotProveRearrangeRoundShow thatSimplifySketchSolveStateSubstituteWork outWriteWrite down

General

AboutAltogetherAmountApproximatelyAssumeAt leastAt mostCombinedConsecutiveEachExploreGeneraliseIn terms ofMaximumMinimumModelOptimumPerPer annumRemainingRepresentRespectivelyShareSustainableTotalValue

Exterior angle

Practise this

The angle between a side of a polygon and the next side extended.

In Español · sample
Ángulo exteriorEl ángulo entre un lado de un polígono y la prolongación del lado siguiente.

The exterior angles of a polygon add up to 360°, so each exterior angle of a regular ___ is 360° ÷ ___ = ___°.

The exterior angles add up to 360°, so each exterior angle of a regular hexagon is 360° ÷ 6 = 60°.

Practise this

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