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Awards392 skills90 lessons388 videos56 gamesRecommendations wallskill planRecommendations wallskill planConvert between standard and expanded formPlace valueRelationship between place valuesWrite numbers in wordsSpell word names for numbers up to one millionRoman numerals I, V, X, L, C, D, MEstimate sums and differences of whole numbersEstimate sums and differences: word problemsAdd and subtract whole numbersAdd and subtract whole numbers: word problemsComplete addition and subtraction sentencesProperties of additionAdd using propertiesUnderstanding powers of tenEvaluate powers of tenWrite powers of ten with exponentsMultiplication patterns over increasing place valuesMultiply numbers ending in zerosMultiply numbers ending in zeros: word problemsMultiply a whole number by a power of tenEstimate productsEstimate products: word problemsMultiply by 1-digit numbersMultiply by 1-digit numbers: word problemsMultiply by 2-digit numbers: complete the missing stepsMultiply 2-digit numbers by 2-digit numbersMultiply 2-digit numbers by 3-digit numbersMultiply 2-digit numbers by larger numbersMultiply by 2-digit numbers: word problemsMultiply by 3-digit numbersProperties of multiplicationMultiply using propertiesChoose numbers with a particular productCompare products of whole numbersDivision patterns over increasing place valuesDivide numbers ending in zerosDivide numbers ending in zeros: word problemsEstimate quotients: 2-digit divisorsEstimate quotientsDivide multi-digit numbers by 1-digit numbersDivide by 1-digit numbers: interpret remaindersDivide multi-digit numbers by 1-digit numbers: word problemsDivide by 2-digit numbers: estimate and adjustDivide by 2-digit numbers using modelsDivide by 2-digit numbers using partial quotientsDivide 2-digit and 3-digit numbers by 2-digit numbersDivide 2-digit and 3-digit numbers by 2-digit numbers: word problemsDivide 4-digit numbers by 2-digit numbersDivide 4-digit numbers by 2-digit numbers: word problemsAdjust quotientsRelate multiplication and divisionComplete the division sentence: 2-digit divisorsChoose numbers with a particular quotientIdentify factorsIdentify multiplesPrime and composite numbersPrime factorizationDivisibility rulesDivisibility rules: word problemsFind all the factor pairs of a numberLeast common multipleAdd, subtract, multiply, and divide whole numbersAdd, subtract, multiply, and divide whole numbers: word problemsWrite numerical expressions: one operationWrite numerical expressions: two operationsEvaluate numerical expressionsEvaluate numerical expressions with parenthesesEvaluate numerical expressions with parentheses and bracketsIdentify mistakes involving the order of operationsEvaluate numerical expressions with parentheses in different placesEvaluate numerical expressions with fractionsNumerical operations: find the missing signComparison statements with numerical expressionsMake the largest possible quotientWrite numerical expressions for word problemsUse numerical expressions to solve multi-step word problemsRepresent multi-step problems using equationsUse equations with unknown numbers to solve multi-step word problemsMulti-step word problemsMulti-step word problems involving remaindersMulti-step word problems: identify reasonable answersMulti-step word problems: multiplicative comparisonFractions reviewEquivalent fractionsWrite fractions in lowest termsConvert between improper fractions and mixed numbersLeast common denominatorRound mixed numbersReciprocalsGraph and compare fractions on number linesCompare fractions using benchmarksCompare fractions and mixed numbersPut fractions in orderEstimate sums and differences of fractions using benchmarksAdd fractions with unlike denominators using modelsAdd fractions with unlike denominatorsSubtract fractions with unlike denominators using modelsSubtract fractions with unlike denominatorsAdd and subtract fractions with unlike denominatorsAdd and subtract fractions with unlike denominators: word problemsAdd 3 or more fractions with unlike denominatorsAdd 3 or more fractions: word problemsComplete addition and subtraction sentences with fractionsCompare sums and differences of fractionsEstimate sums and differences of mixed numbersAdd and subtract mixed numbers with unlike denominators: without regroupingAdd mixed numbers with unlike denominatorsSubtract mixed numbers with unlike denominatorsAdd and subtract mixed numbersAdd and subtract mixed numbers: word problemsAdd and subtract fractions and mixed numbers in recipesAdd and subtract fractions and mixed numbers: multi-step word problemsComplete addition and subtraction sentences with mixed numbersCompare sums and differences of mixed numbersMultiply fractions by whole numbers: choose the modelMultiply fractions by whole numbers using models: complete the equationMultiply fractions by whole numbers using number linesMultiples of fractions: find the missing numbersMultiply fractions by whole numbers using arraysFractions of a number: model and multiplyMultiply two unit fractions using modelsMultiply two fractions using modelsMultiply fractions greater than one using modelsMultiply fractions by whole numbers IMultiply fractions by whole numbers IIMultiply fractions by whole numbers: word problemsMultiply fractions and whole numbers: sortingFractions of a number IFractions of a number: word problemsFractions of a number IIMultiply two fractionsMultiply two fractions: word problemsMultiply three fractions and whole numbersComplete the fraction multiplication sentence IComplete the fraction multiplication sentence IIUnderstand fraction multiplication and areaMultiply fractions to find areaMultiply a mixed number by a whole number using a model IMultiply a mixed number by a whole number using a model IIMultiply with mixed numbers using area modelsEstimate products of mixed numbersMultiply a mixed number by a whole numberMultiply a mixed number by a fractionMultiply two mixed numbersMultiply mixed numbers, fractions, and whole numbersMultiply three mixed numbers, fractions, and whole numbersMultiplication with mixed numbers: word problemsMultiply fractions and mixed numbers in recipesMultiply fractions and mixed numbers: multi-step word problemsScaling whole numbers by fractions: justify your answerScaling whole numbers by fractionsScaling fractions by fractionsScaling mixed numbers by fractionsScaling by fractions and mixed numbersRelate division and fractionsUnderstand fractions as division: word problemsDivide unit fractions by whole numbers using modelsDivide unit fractions by whole numbers using area modelsDivide whole numbers by unit fractions using modelsDivide whole numbers by unit fractions using area modelsDivide unit fractions and whole numbers using area modelsDivide unit fractions and whole numbers using number linesDivide unit fractions by whole numbersDivide whole numbers by unit fractionsDivide unit fractions and whole numbersDivide unit fractions and whole numbers: word problemsAdd, subtract, multiply, and divide fractions and mixed numbersAdd, subtract, multiply, and divide fractions and mixed numbers: word problemsMulti-step word problems with fractions and mixed numbersWhat decimal number is illustrated?Place value models for decimal numbersUnderstanding decimals expressed in wordsPlace values in decimal numbersRelationship between decimal place valuesConvert decimals between standard and expanded formConvert decimals between standard and expanded form using fractionsCompose and decompose decimals in multiple waysRound decimalsDecimal number linesEquivalent decimalsCompare decimals using gridsCompare decimals on number linesCompare decimal numbersPut decimal numbers in order using number linesPut decimal numbers in orderCompare, order, and round decimals: word problemsModel decimals and fractionsConvert fractions to decimalsConvert mixed numbers to decimalsConvert decimals to fractionsConvert decimals to mixed numbersCompare decimals and fractions on number linesCompare decimals and fractionsPut a mix of decimals and fractions in orderPut a mix of decimals, fractions, and mixed numbers in orderAdd decimal numbers using blocksAdd decimal numbersUse properties to add three decimalsSubtract decimal numbers using blocksSubtract decimal numbersAdd and subtract decimal numbersUse compensation to add and subtract decimalsAdd and subtract decimals: word problemsChoose decimals with a particular sum or differenceComplete the decimal addition or subtraction sentenceCompare sums and differences of decimalsNumber sequences involving decimalsEstimate sums and differences of decimals using roundingEstimate sums and differences of decimals using benchmarksMultiply a decimal by a power of tenMultiply a decimal by a power of ten: with exponentsMultiply by 0.1 or 0.01Multiply by a power of ten with decimals: find the missing numberEstimate products of whole numbers and decimalsMultiply a decimal by a one-digit whole number: tenths or hundredthsMultiply a decimal by a one-digit whole number using blocksMultiply a decimal by a one-digit whole number using the distributive propertyMultiply a decimal by a one-digit whole numberMultiply a decimal by a two-digit whole number using area modelsMultiply a decimal by a multi-digit whole numberMultiply decimals and whole numbers: word problemsMultiply three or more numbers, one of which is a decimalEstimate products of decimalsMultiply decimals less than one using gridsMultiply decimals using gridsMultiply two decimals: where does the decimal point go?Multiply decimals using area modelsMultiply two decimals: products up to hundredthsMultiply two decimals: products up to thousandthsDecimal multiplication: compare products up to hundredthsDecimal multiplication: compare products up to thousandthsDivide by powers of tenDecimal division patterns over increasing place valuesDivide by a power of ten: with exponentsMultiply and divide by a power of ten: with exponentsDivide by a power of ten with decimals: find the missing numberDivide by 0.1 or 0.01Estimate decimal quotientsDivide decimals using blocks: complete the equationDivide decimals using area models: complete the equationDivide decimals by whole numbers using place valueDivide decimals by whole numbers without adding zerosDivision with decimal quotientsDivision with decimal quotients and roundingDivision with decimal quotients: word problemsDivide by decimals using place valueDivide by decimals without adding zerosDivide by decimalsAdd, subtract, multiply, and divide decimalsAdd, subtract, multiply, and divide decimals: word problemsAdd, subtract, multiply, and divide decimals: multi-step word problemsEquations with mixed operations: true or falseAdd and subtract money amountsAdd and subtract money: word problemsAdd and subtract money: multi-step word problemsMultiply money amountsMultiply money amounts: word problemsMultiply money amounts: multi-step word problemsDivide money amountsDivide money amounts: word problemsPrice listsUnit pricesFind the number of each type of coinConvert time unitsCompare and convert customary units of lengthCompare and convert customary units of weightCompare and convert customary units of volumeCompare and convert customary unitsConversion tables - customary unitsCompare customary units by multiplyingConvert customary units involving fractionsConvert mixed customary unitsAdd and subtract mixed customary unitsMulti-step problems with customary unit conversionsCompare and convert metric units of lengthCompare and convert metric units of massCompare and convert metric units of volumeCompare and convert metric unitsConversion tables - metric unitsConvert metric mixed unitsAdd and subtract metric mixed unitsMulti-step problems with metric unit conversionsMulti-step problems with customary or metric unit conversionsUse a rule to complete a number patternCompare patternsComplete an increasing number patternComplete a multiplication number patternNumber patterns: word problemsNumber patterns: mixed reviewDescribe the coordinate planeObjects on a coordinate planeGraph points on a coordinate planeGraph triangles and quadrilateralsGraph points from a tableUse a rule to complete a table and a graphAnalyze graphed relationshipsCoordinate planes as mapsFollow directions on a coordinate planeWrite variable expressionsWrite variable expressions: word problemsEvaluate variable expressionsWrite variable equations: word problemsFind a value using two-variable equationsComplete a table for a two-variable relationshipComplete a table from a graphGraph patterns using rulesGraph a two-variable relationshipWrite a two-variable equationInterpret line plots with whole numbersCreate line plots with decimalsCreate line plots with fractionsCreate and interpret line plots with fractionsInterpret line plots with fractions: multi-step problemsCreate line graphsInterpret line graphsCreate bar graphsInterpret bar graphsInterpret bar graphs: multi-step problemsCreate frequency tablesInterpret frequency tables: one-step problemsInterpret frequency tables: multi-step problemsCreate stem-and-leaf plotsInterpret stem-and-leaf plotsCreate scatter plotsInterpret scatter plotsPredictions and trends in scatter plotsFind the modeFind the meanFind the medianFind the rangeMean: find the missing numberMedian: find the missing numberRange: find the missing numberInterpret charts and graphs to find the modeInterpret charts and graphs to find the meanInterpret charts and graphs to find the medianInterpret charts and graphs to find the rangeAcute, obtuse, and right trianglesScalene, isosceles, and equilateral trianglesClassify trianglesParallel sides in quadrilateralsIdentify parallelogramsIdentify trapezoidsIdentify rectanglesIdentify rhombusesClassify quadrilateralsPick all the names for a quadrilateralDraw quadrilateralsIdentify the relationships between quadrilateralsDescribe relationships among quadrilateralsIs it a polygon?Number of sides in polygonsRegular and irregular polygonsSort polygons into Venn diagramsProperties of polygonsPerimeter with whole number side lengthsPerimeter with decimal side lengthsPerimeter with fractional side lengthsPerimeter of figures on gridsArea of squares and rectanglesArea of rectangles with fractionsArea of rectangles with fractions and mixed numbersArea of compound figuresArea between two rectanglesArea of figures on gridsArea and perimeter: word problemsArea and perimeter of rectangles with fractionsArea and perimeter of rectangles with decimalsArea and perimeter: multi-step word problems with unit conversionsVolume of irregular figures made of unit cubesVolume of rectangular prisms made of unit cubes: expressionsVolume of rectangular prisms made of unit cubesVolume of rectangular prisms made of unit cubes: word problemsVolume of cubes and rectangular prismsVolume of cubes and rectangular prisms: word problemsCompare volumes and dimensions of rectangular prisms: word problemsVolume of cubes and rectangular prisms: multi-step word problemsVolume of compound figuresVolume of cubes and rectangular prisms with decimal side lengthsCompare and apply cubic unitsIncome and payroll taxes: understanding pay stubsIncome and payroll taxes: word problemsSales and property taxes: word problemsIdentify types of taxesUnderstand gross and net incomeCalculate gross and net incomeIdentify advantages and disadvantages of payment methodsEvaluate payment methodsReading financial recordsKeeping financial recordsBalance a budgetAdjust a budgetPlace valuePrime and composite numbersPrime factorizationFactorsGreatest common factorMultiplesLeast common multipleMultiplying multiples of 10Estimating productsArea model multiplicationPartial productsLattice multiplicationMultiplying by 1-digit numbersMultiplying by 2-digit numbersMultiplying by 3-digit numbersLong multiplicationDividing multiples of 10Estimating quotientsPartial quotientsArea model divisionDividing by 1-digit numbersDividing by 2-digit numbersLong divisionExponentsPowers of 10The distributive propertyOrder of operationsPEMDASFractions overviewUnderstanding fractionsFraction area modelsFractions on a number lineFractions of a setEquivalent fractionsComparing fractionsLeast common denominatorSimplest formMixed numbers and improper fractionsFractions as divisionAdding fractions with like denominatorsAdding fractions with unlike denominatorsAdding mixed numbersSubtracting fractions with like denominatorsSubtracting fractions with unlike denominatorsSubtracting mixed numbersMultiplying fractions and whole numbersMultiplying fractionsMultiplying mixed numbersMultiplication as scalingDividing fractions and mixed numbersDividing fractions by whole numbersDividing whole numbers by fractionsReciprocalsFractions and decimalsConverting between fractions, decimals, and percentsDecimal place valueWriting decimals in expanded formWriting decimals in word formEquivalent decimalsComparing decimalsRounding decimalsAdding decimalsSubtracting decimalsMultiplying decimals by powers of 10Multiplying decimals by whole numbersMultiplying decimalsDividing decimals by powers of 10Dividing decimals by whole numbersDividing decimalsParallel and perpendicular linesTypes of anglesMeasuring angles with a protractorTypes of trianglesTypes of quadrilateralsParallelogramsRhombusesRectanglesSquaresTrapezoidsKitesRegular polygonsArea of rectanglesArea of compound shapesVolume of rectangular prismsLine plotsMetric units of measurementConverting metric unitsCustomary units of measurementConverting customary unitsFrequency tablesP
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