Resources and Tools for Elementary Math Specialists and Teachers
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2, 4, 6, 8

This problem with multiple solutions offers an opportunity for students to practice simple addition and subtraction, work with number sentences (equations), and develop systematic work habits. Given cards containing the addition, subtraction and equal signs along with the digits 2, 4, 6, and 8. solvers are challenged to find as many ways as possible to arrange some or all seven cards to create true statements. The Teachers' Notes page offers suggestions for implementation, discussion questions, ideas for extension and support, printable cards (pdf) and a link to an interactive Flash applet.
Contributed by: Millennium Mathematics Project, Publisher
Math TopicNumber Sense, Basic Operations, Number Concepts, Mathematical Practices
Grade Level1, 2
Resource TypeActivity, Interactive Media

  • Additional Information
    • AudienceLearner
    • LanguageEnglish (United Kingdom), Chinese, Dutch, French, German, Italian, Spanish
    • Education Topic
    • Interdisciplinary Connection
    • Professional DevelopmentNo
    • ContributorMillennium Mathematics Project, Publisher
    • Publication Date2000-06
    • RightsCopyright (c) 2007 University of Cambridge
    • AccessFree access
  • Standards
    • Common Core State Standards for Mathematics

      Select a standards document: