EDU.COMBlogGuidePodcastPlanHomeMath GlossarySubtracting IntegersExponentLowest TermsAcute AngleIsosceles Right TriangleLineView All Math TermsUse the Number Line to Round Numbers to the Nearest Ten3Math3.NBT.A.1Find Equivalent Fractions with the Number Line3Math3.NF.A.3.a, 3.NF.A.3.bUse place value to multiply by 103Math3.OA.C.7Find and Represent Fractions on a Number Line beyond 13Math3.NF.A.2a, 3.NF.A.Multiply by 73Math3.OA.C.7multi-digit subtraction within 1,000 without regrouping3Math3.NBT.A.2View All Interactive LessonsFind 10 more or 10 less mentally1Math1.NBT.C.5Add within 10 Fluently1Math1.OA.C.6Get To Ten To Subtract1Math1.OA.C.6Multiply Mixed Numbers by Whole Numbers4Math4.NF.B.4bSubtract Mixed Number With Unlike Denominators5Math5.NF.A.1Greatest Common Factors6Math6.NS.B.4View All VideosSubtract within 20 Fluently2Math2.OA.B.2Measure Mass3Math3.MD.A.2Multiply two-digit numbers by multiples of 104Math4.NBT.B.5Word problems: multiply multi-digit numbers by one-digit numbers4Math4.OA.A.2, 4.OA.A.3Write and Interpret Numerical Expressions5Math5.OA.A.2Multiply Multi-Digit Numbers5Math5.NBT.B.5View All WorksheetsNumber 20 in large font with two balloons floating above each digitPre-K – KAll SubjectsSimple outline of a gondola with a gondolier in a large canal with minimal background detailsPre-K – KAll SubjectsGoat running in a field1 – 2All SubjectsAutumn harvest basket with a scarecrow standing behind it1 – 2All SubjectsNumber 21 with tiger-like stripes and a jungle background with trees and vines5 – 6All SubjectsRoasted ham being sliced by a hand in a festive kitchen setting5 – 6All 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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