Resources and Tools for Elementary Math Specialists and Teachers
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A Square of Numbers

In this problem students practice basic number facts while developing systematic thinking and understanding of properties of numbers and operations. Four calculations are presented in a square configuration; solvers arrange the numbers 1 through 8 to make the calculations correct. An interactive applet is provided. The Teachers' Notes page offers suggestions for implementation, discussion questions, ideas for extension and support, and a downloadable pdf of the puzzle.
Contributed by: Millennium Mathematics Project, Publisher
Math TopicNumber Sense, Basic Operations, Number Concepts, Mathematical Practices, Mathematical Processes
Grade Level3, 4, 5
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 Date2009-09
    • RightsCopyright (c) 2007 University of Cambridge
    • AccessFree access
  • Standards
    • Common Core State Standards for Mathematics

      Select a standards document: