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  • LATEST PROBLEM OF THE WEEK

    CKSTEM will share amazing math and computing problems on a regular interval for you to try. We hope you will enjoy these. Let us know if you have any interesting problems that you would like us to publish.

  • Problems & Quizzes by Topics

     

    1

    Arithmetic

    • Pyramid of negative numbers (difficulty level 3)

    • Establish A Mathematical Connection Between The Summer Contests (difficulty level 2)

    • Creative Math - Substitution Arithmetic (difficulty level 3)

    • Order of operations Quiz (difficulty level 2)

    • Basic Fractions and Decimals Quiz (difficulty level 2)

    • Addition Quiz (difficulty level 1)

    • Subtraction Quiz (difficulty level 1)

    • Multiplication Quiz (difficulty level 1)

    • Division Quiz (difficulty level 1)

    2

    Algebra

    • A delicate relationship - percents, fractions, & decimals (difficulty level 1)

    • Advanced Exponent Comparison Strategies Quiz (difficulty level 3)

    • Quadratic Equation Quiz (difficulty level 3)

    3

    Geometry

    • Using Triangle Inequalities (difficulty level 3)

    • Missing Angles (difficulty level 1)

    4

    Logic

    • Why Can't We Make Exactly 7 Friends? (difficulty level 2)

    • Classic Legacy Puzzles (difficulty level 2)

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