Type:

Other

Description:

This interactive Flash applet helps students develop fluency with addition, subtraction, doubling and halving. The applet presents a starting number, a target number, and four choices of operations (double, halve, add 7, subtract 3). The goal is to arrive at the target in as few steps as possible. [This is similar to The Near Doubles Machine but with different parameters.]

Subjects:

  • Mathematics > General
  • Education > General

Education Levels:

  • Grade 1
  • Grade 2
  • Grade 3
  • Grade 4
  • Grade 5
  • Grade 6
  • Grade 7
  • Grade 8
  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12

Keywords:

Grade 2,Grade 3,NSDL,Grade 4,Grade 5,Addition,oai:nsdl.org:2200/20140728160738570T,Early Elementary,Strategies,Number concepts,Social Sciences,Arithmetic,Analyze and persevere,Division,Number and operations,Upper Elementary,Critical thinking,Subtraction,Multiplication,Composition and decomposition of numbers,Informal Education,Whole numbers,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-027,Comparison of numbers,Practice Standards,Life Science,Elementary School,Reason quantitatively,Chemistry,Operations,Mental calculation,Number sense,Mathematics,Problem solving,Process skills,Education,Reasoning

Language:

English

Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial Share Alike

Collections:

None
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Non-profit Tax ID # 203478467