- 01.Useknowledgeofpart-part-wholestructuretosolveadditiveproblems
- 0:0 免费01.Explainhowacombinationofdiff ...
- 0:0 免费02.Identifystructureswithinstor ...
- 0:0 免费03.Identifythemissingpartusingk ...
- 0:0 免费04.Useamodeltointerpretapart-pa ...
- 0:0 免费05.Createstoriestomatchstructur ...
- 0:0 免费06.Useknowledgeofadditivestruct ...
- 0:0 免费07.Usementalstrategiesandknownf ...
- 0:0 免费08.Usewrittenstrategiesandknown ...
- 0:0 免费09.Representanequationinapart-p ...
- 0:0 免费10.Usepart-part-wholestructures ...
- 02.Useequivalenceandcompensationtosimplifyandsolveadditioncalculations
- 0:0 免费01.Usingredistributionwithaddit ...
- 0:0 免费02.Usingredistributionwithaddit ...
- 0:0 免费03.Usingbalancedequationstocalc ...
- 0:0 免费04.Useabalancedequationtocalcul ...
- 0:0 免费05.Explainhowadjustingonepartaf ...
- 0:0 免费06.Solveadditioncalculationsmen ...
- 0:0 免费07.Solveadditioncalculationsmen ...
- 0:0 免费08.Solvecalculationswithmissing ...
- 0:0 免费09.Useequivalenceandcompensatio ...
- 0:0 免费10.Useequivalenceandcompensatio ...
- 03.Useequivalenceandcompensationtosimplifyandsolvesubtractionproblems
- 0:0 免费01.Explainandrepresentconstantd ...
- 0:0 免费02.Explainhowconstantdifference ...
- 0:0 免费03.Useconstantdifferencetobalan ...
- 0:0 免费04.Explainhowincreasingordecrea ...
- 0:0 免费05.Solvesubtractioncalculations ...
- 0:0 免费06.Explainhowadjustingtheminuen ...
- 0:0 免费07.Explainhowadjustingthesubtra ...
- 0:0 免费08.Explainhowadjustingthesubtra ...
- 0:0 免费09.Calculatethedifferenceusingk ...
- 0:0 免费10.Useequivalenceandcompensatio ...
- 04.Multiplesof1,000
- 0:0 免费01.Explainhowtenthousandcanbeco ...
- 0:0 免费02.Explainhowonehundredthousand ...
- 0:0 免费03.Readandwritenumbersuptoonemi ...
- 0:0 免费04.Readandwritenumbersuptoonemi ...
- 0:0 免费05.Positionfive-digitmultipleso ...
- 0:0 免费06.Position6-digitmultiplesof1, ...
- 0:0 免费07.Countforwardsandbackwardsinp ...
- 0:0 免费08.Explainthat10,000iscomposedo ...
- 0:0 免费09.Explainthat100,000iscomposed ...
- 0:0 免费10.Readthescalesofgraphsandmeas ...
- 05.Understandplacevaluewithinnumberswithupto7digits
- 0:0 免费01.Powersof10andtheirmultiples
- 0:0 免费02.Compositionofonemillionand10 ...
- 0:0 免费03.Problemsolvingusingknowledge ...
- 0:0 免费04.Readandwritenumbersupto10mil ...
- 0:0 免费05.Representingnumbersupto10mil ...
- 06.Order,compareandcalculatewithnumbersupto8digits
- 0:0 免费01.Determinethevalueofdigitsinn ...
- 0:0 免费02.Comparenumberswithuptoeightd ...
- 0:0 免费03.Useknowledgeofthecomposition ...
- 0:0 免费04.Addandsubtractmentallywithou ...
- 0:0 免费05.Addmultiplesofpowersof10cros ...
- 0:0 免费06.Subtractmultiplesofpowersof1 ...
- 0:0 免费07.Compositionofseven-digitnumb ...
- 0:0 免费08.Usingpatternsincountingseque ...
- 0:0 免费09.Estimateandidentifynumberson ...
- 0:0 免费10.Solvingproblemsusingcolumnad ...
- 07.Roundingandsolvingproblemswithnumbersupto7digits
- 0:0 免费01.Rounding7-digitnumberstothen ...
- 0:0 免费02.Roundingseven-digitnumbersto ...
- 0:0 免费03.Solvingcalculationsefficient ...
- 0:0 免费04.Explorementalandwrittenstrat ...
- 0:0 免费05.Solveproblemsexplainingwhich ...
- 08.Draw,composeanddecomposeshapes
- 0:0 免费01.Useknowledgeofshapepropertie ...
- 0:0 免费02.Useknowledgeofshapepropertie ...
- 0:0 免费03.3Dshapescanbecomposedfrom2Dn ...
- 0:0 免费04.Thesame3Dshapescanbecomposed ...
- 0:0 免费05.Whena2Dshapeisdecomposedandt ...
- 0:0 免费06.Anyparallelogramcanbedecompo ...
- 0:0 免费07.Twocongruenttrianglescanbear ...
- 0:0 免费08.Shapeswiththesameareascanhav ...
- 0:0 免费09.Reasonaboutshapesusingtherel ...
- 0:0 免费10.Reasonaboutcompoundshapesusi ...
- 09.Usingequivalencetocalculate
- 0:0 免费01.Explainwhytheproductstaysthe ...
- 0:0 免费02.Explaintheeffectontheproduct ...
- 0:0 免费03.Useknowledgeofequivalencewhe ...
- 0:0 免费04.Explaintheeffectonthequotien ...
- 0:0 免费05.Explaintheeffectonthequotien ...
- 10.Multiplyinganddividingby2-digitnumbers
- 0:0 免费01.Explainhowtomultiplya3-digit ...
- 0:0 免费02.Explainhowtouselongmultiplic ...
- 0:0 免费03.Explainhowtouselongmultiplic ...
- 0:0 免费04.Explainhowtouselongmultiplic ...
- 0:0 免费05.Explainhowtouselongmultiplic ...
- 0:0 免费06.Explainhowtousetheassociativ ...
- 0:0 免费07.Explainwhenitisefficienttous ...
- 0:0 免费08.Dividingnumberswithupto4digi ...
- 0:0 免费09.Usingshortandlongdivisiontod ...
- 0:0 免费10.Dividingbya2-digitdivisorinc ...
- 0:0 免费11.Solveproblemswith4-digitdivi ...
- 0:0 免费12.Dividingbya2-digitdivisorwit ...
- 0:0 免费13.Uselongdivisionwithfractionr ...
- 0:0 免费14.Uselongdivisionwithdecimalre ...
- 0:0 免费15.Solveproblemsinvolvingremain ...
- 11.Area,perimeter,positionanddirection
- 0:0 免费01.Explainhowtocalculatethearea ...
- 0:0 免费02.Usetheareaofaparallelogramfo ...
- 0:0 免费03.Explainhowtocalculatethearea ...
- 0:0 免费04.Usetheareaofatriangletocalcu ...
- 0:0 免费05.Solveproblemsinvolvingareaan ...
- 0:0 免费06.Describetherelationshipbetwe ...
- 0:0 免费07.Drawandcompletesimpleshapesb ...
- 0:0 免费08.Drawandtranslatesimpleshapes ...
- 0:0 免费09.Reflectsimpleshapesintheaxes ...
- 0:0 免费10.Solveproblemsinvolvingmissin ...
- 12.Additionandsubtractionoffractions
- 0:0 免费01.Explainhowtowriteafractionin ...
- 0:0 免费02.Reasonabouthowtowriteafracti ...
- 0:0 免费03.Useknowledgeoffractionsinthe ...
- 0:0 免费04.Explainhowtoaddrelatedunitfr ...
- 0:0 免费05.Explainhowtoaddrelatedunitfr ...
- 0:0 免费06.Explainhowtosubtractrelatedu ...
- 0:0 免费07.Useknowledgeofaddingandsubtr ...
- 0:0 免费08.Explainwithandwithoutanimage ...
- 0:0 免费09.Explainwithandwithoutimagesh ...
- 0:0 免费10.Addandsubtractnon-relatedfra ...
- 13.Comparingfractions
- 0:0 免费01.Explainhowtocomparenon-relat ...
- 0:0 免费02.Explainhowtocomparepairsofno ...
- 0:0 免费03.Explainhowtocomparepairsofno ...
- 0:0 免费04.Explainwhichstrategyforcompa ...
- 0:0 免费05.Ordersetsofnon-relatedfracti ...
- 14.Multiplicationanddivisionoffractions
- 0:0 免费01.Explainhowtomultiplytwounitf ...
- 0:0 免费02.Explainhowtomultiplytwonon-u ...
- 0:0 免费03.Explainhowtodivideaunitfract ...
- 0:0 免费04.Explainhowtodivideanon-unitf ...
- 0:0 免费05.Explainhowtodivideafractionb ...
- 15.Understandingpercentages
- 0:0 免费01.Explainwhatpercentmeansandre ...
- 0:0 免费02.Explainhowtoconvertpercentag ...
- 0:0 免费03.Explainhowtoconvertapercenta ...
- 0:0 免费04.Useknowledgeoffraction-decim ...
- 0:0 免费05.Useknowledgeofcalculating50% ...
- 0:0 免费06.Useknowledgeofcalculatingcom ...
- 0:0 免费07.Useknowledgeofcalculatingany ...
- 0:0 免费08.Explainhowtosolveproblemswhe ...
- 0:0 免费09.Solveproblemswheretheknownpe ...
- 0:0 免费10.Solveproblemsinvolvingpercen ...
- 16.Statistics
- 0:0 免费01.Useunderstandingofangles,fra ...
- 0:0 免费02.Useunderstandingofangles,fra ...
- 0:0 免费03.Interpretlinegraphsrepresent ...
- 0:0 免费04.Constructlinegraphsrepresent ...
- 0:0 免费05.Interpretthescalesusedingrap ...
- 17.Ratioandproportion
- 0:0 免费01.Describetherelationshipbetwe ...
- 0:0 免费02.Representingratioindifferent ...
- 0:0 免费03.Explainhowtorepresentratioan ...
- 0:0 免费04.Usemultiplicationanddivision ...
- 0:0 免费05.Solveproblemsinvolvingratio
- 0:0 免费06.Explainhowandwhyscalingisuse ...
- 0:0 免费07.Useknowledgeofmultiplication ...
- 0:0 免费08.Solveproblemsinvolvingscalin ...
- 0:0 免费09.Identifyanddescribetherelati ...
- 0:0 免费10.Identifyanddescribetherelati ...
- 18.Calculatingusingknowledgeofequivalenceinadditionandsubtraction
- 0:0 免费01.Explainhowtobalanceequations ...
- 0:0 免费02.Explainhowtobalanceequations ...
- 0:0 免费03.Explainhowtobalanceequations ...
- 0:0 免费04.Explainhowtobalanceequations ...
- 0:0 免费05.Useknowledgeofbalancingequat ...
- 19.Solvingproblemswithtwounknowns
- 0:0 免费01.Comparethestructureofproblem ...
- 0:0 免费02.Representthestructureofaprob ...
- 0:0 免费03.Explainwhythereissometimeson ...
- 0:0 免费04.Representandsolveproblemswit ...
- 0:0 免费05.Useabarmodeltorepresentspati ...
- 0:0 免费06.Explainhowtorepresentanequat ...
- 0:0 免费07.Solveproblemswithtwounknowns ...
- 0:0 免费08.Explainhowyouknowyouhavefoun ...
- 0:0 免费09.Explainhowtobalanceanequatio ...
- 0:0 免费10.Solveproblemswithtwounknowns ...
- 20.Orderofoperations
- 0:0 免费01.Combinemultiplicationwithadd ...
- 0:0 免费02.Explainhowthedistributivelaw ...
- 0:0 免费03.Combinedivisionwithadditiona ...
- 0:0 免费04.Explainhowthedistributivelaw ...
- 0:0 免费05.Useknowledgeoftheorderofoper ...
- 21.Meanaverage
- 0:0 免费01.Explaintherelationshipbetwee ...
- 0:0 免费02.Explainhowtocalcluatethemean ...
- 0:0 免费03.Explainhowthemeanchangeswhen ...
- 0:0 免费04.Explainhowtousethemeantomake ...
- 0:0 免费05.Explainwhythemeanisusefuland ...
- 22.Integers&Decimals
- 0:0 免费01.Understandingotherpowersofte ...
- 0:0 免费02.Readingandwriting7-digitnumb ...
- 0:0 免费03.Understandinghowthedigitsina ...
- 0:0 免费04.Compareandordernumberstotenm ...
- 0:0 免费05.Roundingtoarequireddegreeofa ...
- 0:0 免费06.Estimatingandroundingcontext ...
- 0:0 免费07.Strategiesforaddition
- 0:0 免费08.Strategiesforsubtraction
- 0:0 免费09.Applyingadditionandsubtracti ...
- 0:0 免费10.Additionandsubtractionproble ...
- 23.Multiplicationanddivision
- 0:0 免费01.Representdecimalnumbersinava ...
- 0:0 免费02.PlaceValueto3DecimalPlaces
- 0:0 免费03.Multiplyanddivideby10,100and ...
- 0:0 免费04.Multiplyanddivideby10,100and ...
- 0:0 免费05.Understandthetermsɼommonfac ...
- 0:0 免费06.Identifypropertiesofnumbers
- 0:0 免费07.Multiplyadecimalnumberbyawho ...
- 0:0 免费08.Solvemultiplicationproblemsu ...
- 0:0 免费09.Useefficientstrategiestomult ...
- 0:0 免费10.Practisemultiplicationanddiv ...
- 0:0 免费11.Useformalwrittenmethodsforsh ...
- 0:0 免费12.Multiplybyatwo-digitnumberus ...
- 0:0 免费13.Useformalwrittenmethods,incl ...
- 0:0 免费14.Exploreefficientmentalstrate ...
- 0:0 免费15.Usetheformalwrittenmethodfor ...
- 0:0 免费16.Usetheformalwrittenmethodofl ...
- 0:0 免费17.Solveproblemsinvolvingdivisi ...
- 0:0 免费18.Solveproblemsinvolvingdivisi ...
- 0:0 免费19.Representremaindersindiffere ...
- 0:0 免费20.Representremaindersindiffere ...
- 24.Calculationproblems
- 0:0 免费01.Understandingwhichoperations ...
- 0:0 免费02.Orderofoperations
- 0:0 免费03.Consolidatingorderofoperatio ...
- 0:0 免费04.Linearnumbersequences
- 0:0 免费05.Expressingmissingnumbersalge ...
- 0:0 免费06.Expressingmissingnumberprobl ...
- 0:0 免费07.Findingsolutionstoproblemswi ...
- 0:0 免费08.Consolidatinglinearsequences ...
- 0:0 免费09.Reasoningandproblemsolving
- 0:0 免费10.Reasoningandproblemsolving(P ...
- 25.Missinganglesandlengths
- 0:0 免费01.Findthevalueofmissingangles
- 0:0 免费02.Compareandclassifytriangles
- 0:0 免费03.Compareandclassifyquadrilate ...
- 0:0 免费04.Findunknownanglesintriangles
- 0:0 免费05.Findthevalueofmissinganglesi ...
- 26.Coordinatesandshape
- 0:0 免费01.Describingcoordinateposition ...
- 0:0 免费02.Translatingsimpleshapes
- 0:0 免费03.Reflectingsimpleshapes
- 0:0 免费04.Solvingpracticalcoordinatepr ...
- 0:0 免费05.Solvingpracticalcoordinatepr ...
- 0:0 免费06.CoordinatesandshapesTorecogn ...
- 0:0 免费07.CoordinatesandshapesTorecogn ...
- 0:0 免费08.CoordinatesandshapesTosolvep ...
- 0:0 免费09.CoordinatesandshapesToillust ...
- 0:0 免费10.CoordinatesandshapesTosolvep ...
- 27.Decimalsandmeasures
- 0:0 免费01.DecimalsandmeasuresTogenerat ...
- 0:0 免费02.DecimalsandmeasuresStandardU ...
- 0:0 免费03.DecimalsandmeasuresConvertst ...
- 0:0 免费04.DecimalsandmeasuresSolvingpr ...
- 0:0 免费05.DecimalsandmeasuresCalculati ...
- 0:0 免费06.Decimalsandmeasurescalculati ...
- 0:0 免费07.DecimalsandmeasuresThevolume ...
- 0:0 免费08.DecimalsandmeasuresConvertbe ...
- 0:0 免费09.DecimalsandmeasuresSolvingpr ...
- 0:0 免费10.DecimalsandmeasuresConvertbe ...
- 28.Percentagesandstatistics
- 0:0 免费01.Understandwhatapercentageisa ...
- 0:0 免费02.Recallanduseequivalencesbetw ...
- 0:0 免费03.Solveproblemsinvolvingthecal ...
- 0:0 免费04.Solveproblemsinvolvingtheuse ...
- 0:0 免费05.InterpretMeanasanAverage
- 0:0 免费06.InterpretLineGraphs
- 0:0 免费07.Constructlinegraphs
- 0:0 免费08.InterpretPieCharts
- 0:0 免费09.Comparingpiecharts
- 0:0 免费10.Collectingandrepresentingdat ...
- 29.Proportionproblems
- 0:0 免费01.Constructlinegraphs
- 0:0 免费02.Interpretpiecharts
- 0:0 免费03.Usefractionstoexpressproport ...
- 0:0 免费04.Useratiotoexpressrelationshi ...
- 0:0 免费05.Solveproblemsinvolvingscalef ...
- 0:0 免费06.Solveproblemsinvolvingtherel ...
- 0:0 免费07.Solveproblemsinvolvingtherel ...
- 0:0 免费08.Ratioproblems
- 30.Extendingcalculationstrategiesandadditivereasoning
- 0:0 免费01.Adjustingaddends
- 0:0 免费02.Samesum'withlargernumbers
- 0:0 免费03.Samesum'withdecimals
- 0:0 免费04.Balancingequationsusingthe's ...
- 0:0 免费05.Balancingequationsusingcompe ...
- 0:0 免费06.BalancingequationsDoestheord ...
- 0:0 免费07.Increasinganaddend
- 0:0 免费08.Decreasinganaddend
- 0:0 免费09.Solvecalculationsmentallybyr ...
- 0:0 免费10.Findanunknownaddend
- 0:0 免费11.Introductiontosamedifference
- 0:0 免费12.Samedifferenceincontext
- 0:0 免费13.UsetheLanguageofMinuend,Subt ...
- 0:0 免费14.Transformcalculationsusingth ...
- 0:0
免费15.PracticeTransformingCalculat ... - 0:0 免费16.Transformasubtractioncalcula ...
- 0:0 免费17.Practice'SameDifference'inDi ...
- 0:0 免费18.Balancingequationstofindunkn ...
- 0:0 免费19.Explorehowthedifferencechang ...
- 0:0 免费20.Applythegeneralisationabouth ...
- 0:0 免费21.Explorehowthegeneralisationc ...
- 0:0 免费22.Thinkingflexibly
- 0:0 免费23.ComparingStrategies
- 0:0 免费24.Themorewesubtract,thelesswea ...
- 0:0 免费25.ContextswheretheMinuendisKep ...
- 0:0 免费26.Contextswheretheminuendiskep ...
- 0:0 免费27.Furtherpracticetoreasonabout ...
- 0:0 免费28.Exploreproblemsinwhichthenew ...
- 0:0 免费29.BalanceEquationsWheretheComp ...
- 0:0 免费30.BalanceEquationsWheretheComp ...