Resources and Tools for Elementary Math Specialists and Teachers
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Base Blocks Subtraction

This interactive Java applet helps users develop place value concepts involving subtraction of numbers with 1, 2, 3, or 4 digits. The virtual blocks are manipulated to model regrouping in order to solve whole number subtraction problems posed by the applet. Users also may create and solve their own problems with whole numbers or with up to 3 decimal places. When creating problems a user may change the default of base 10 to any of the bases 2, 3, 4, or 5.
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Contributed by: National Library of Virtual Manipulatives, Publisher
Math TopicNumber Sense, Decimals, Basic Operations, Number Concepts, Mathematical Practices, Mathematical Processes
Grade Level1, 2, 3, 4, 5, 6+
Resource TypeActivity, Interactive Media

  • Additional Information
    • AudienceLearner
    • LanguageEnglish (USA)
    • Education Topic
    • Interdisciplinary Connection
    • Professional DevelopmentNo
    • ContributorNational Library of Virtual Manipulatives, Publisher
    • Publication Date2010
    • RightsCopyright (c) 1999-2010 Utah State University
      http://nlvm.usu.edu/en/nav/copyright.html
    • AccessAvailable for purchase, Free access
  • Standards
    • Common Core State Standards for Mathematics

      Select a standards document: