This interactive Flash game gives students an opportunity to apply what they've learned about divisors and remainders from the Remainders resource (cataloged separately). The computer chooses a secret number between 1 and 100. Each time the user selects a divisor, the applet reveals the resulting remainder. The goal is to gain new information with each division and to guess the secret number with as few divisions as possible. The scoring system encourages efficiency and discourages guessing. The Reminders applet is available if needed.


  • Mathematics > General
  • Education > General

Education Levels:

  • Grade 1
  • Grade 2
  • Grade 3
  • Grade 4
  • Grade 5
  • Grade 6
  • Grade 7
  • Grade 8
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Grade 3,NSDL,Grade 4,Factors,Critical thinking,Visual representation,Reason quantitatively,Number concepts,Social Sciences,Arithmetic,Analyze and persevere,Concept formation,Division,Number and operations,Upper Elementary,Grade 5,Life Science,Composition and decomposition of numbers,Informal Education,Whole numbers,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-027,Comparison of numbers,Reason abstractly,Practice Standards,Elementary School,Representation,Chemistry,Operations,Mental calculation,Mathematics,oai:nsdl.org:2200/20140728160700585T,Process skills,Education,Reasoning



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