EDU.COMBlogGuidePodcastPlanHomeMath GlossaryDigital ClockRate of ChangeDecimal to Octal ConversionCount OnLines of Symmetry in RectanglePictographView All Math TermsConvert four-digit numbers between different forms3Math3.NBT.AMultiply by 43Math3.OA.C.7Find and Represent Fractions on a Number Line beyond 13Math3.NF.A.2a， 3.NF.A.One-Step Word Problems: Multiplication3Math3.OA.A.3Multiply Easily Using the Associative Property3Math3.OA.B.5Multiply by 93Math3.OA.C.7View All Interactive LessonsCompose and Decompose Numbers from 11 to 19KMathK.NBT.A.1Identify Quadrilaterals Using Attributes3Math3.G.A.1Estimate quotients (multi-digit by multi-digit)5Math5.NBT.B.6Solve Equations Using Addition And Subtraction Property Of Equality6Math6.EE.B.7, 6.EE.B.5Use Models and Rules to Divide Fractions by Fractions Or Whole Numbers6Math6.NS.A.1Divide multi-digit numbers fluently6Math6.NS.B.2View All VideosUse Models to Add Without Regrouping1Math1.NBT.C.4Understand A.M. and P.M.2Math2.MD.C.7Multiply Fractions by Whole Numbers4Math4.NF.B.4bUse Models and The Standard Algorithm to Divide Decimals by Decimals5Math5.NBT.B.7Area of Rectangles With Fractional Side Lengths5Math5.NF.B.4bGreatest Common Factors6Math6.NS.B.4View All WorksheetsWitch standing with a pointed hat and holding a wandPre-K – KAll SubjectsAn easter egg with large, simple flowers and no backgroundPre-K – KAll SubjectsTwo cats cuddling together with a ball of yarn beside them1 – 2All SubjectsStar polygon with a rocket ship flying nearby1 – 2All SubjectsTokyo Tower with a Shinto shrine and trees nearby1 – 2All SubjectsLadybug interacting with a caterpillar on a detailed grassy field3 – 4All SubjectsView All Coloring PagesEngaging Black History Month Projects for K-6 StudentsNovember 16, 2025Epic End-of-Year Party Ideas for K-6 ClassroomsNovember 9, 2025Fun Class Party Ideas on a Budget: 20 Celebrations for $30October 7, 2025Creative AAPI Celebration Ideas for Elementary ClassroomsOctober 6, 2025Engaging Bell Ringer Games That Transform Your ClassroomOctober 5, 2025ABCya Egg Hunt: Spring Learning Fun for Your ClassroomOctober 3, 2025View All Blog PostsAbout UsPrivacy PolicyTerms of ServiceHomework HelperGuide DesignerPodcast MakerPlan BuilderMath GlossaryEnglish GlossaryEnglish Language ArtsMathematicsScienceBook InsightsFun with WordsBlog
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- Explore vertices, faces, and edges in geometry: fundamental elements of 2D and 3D shapes. Learn how to count vertices in polygons, understand Euler