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  • CKSTEM
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    • CKSTEM
    • Learn 
      • CKSTEM Courses
      • New Year, New Dreams, New Successes!
      • CKSTEM Family Challenges
      • Holiday Fun Activities
      • How to Outsmart AI?
      • Doses of Motivation
      • Talent V/S Core Values
      • Problem Solving Strategies
    • Compete 
      • Canadian Innovation Contests
      • Australian Mathematics Contest 2025
      • TIMO
      • BBB Olympiad
      • HKIMO
    • Win 
      • Contest Winners
      • CIC 2024 Winners
      • CIC 2023 Winners
      • CIC 2022 Winners
    • Team 
      • About Us
      • Executives
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  • CKSTEM
  • Learn 
    • CKSTEM Courses
    • New Year, New Dreams, New Successes!
    • CKSTEM Family Challenges
    • Holiday Fun Activities
    • How to Outsmart AI?
    • Doses of Motivation
    • Talent V/S Core Values
    • Problem Solving Strategies
  • Compete 
    • Canadian Innovation Contests
    • Australian Mathematics Contest 2025
    • TIMO
    • BBB Olympiad
    • HKIMO
  • Win 
    • Contest Winners
    • CIC 2024 Winners
    • CIC 2023 Winners
    • CIC 2022 Winners
  • Team 
    • About Us
    • Executives
  • …  
    • CKSTEM
    • Learn 
      • CKSTEM Courses
      • New Year, New Dreams, New Successes!
      • CKSTEM Family Challenges
      • Holiday Fun Activities
      • How to Outsmart AI?
      • Doses of Motivation
      • Talent V/S Core Values
      • Problem Solving Strategies
    • Compete 
      • Canadian Innovation Contests
      • Australian Mathematics Contest 2025
      • TIMO
      • BBB Olympiad
      • HKIMO
    • Win 
      • Contest Winners
      • CIC 2024 Winners
      • CIC 2023 Winners
      • CIC 2022 Winners
    • Team 
      • About Us
      • Executives
    Canadian Innovation Contests
    • CKSTEM
    • Learn 
      • CKSTEM Courses
      • New Year, New Dreams, New Successes!
      • CKSTEM Family Challenges
      • Holiday Fun Activities
      • How to Outsmart AI?
      • Doses of Motivation
      • Talent V/S Core Values
      • Problem Solving Strategies
    • Compete 
      • Canadian Innovation Contests
      • Australian Mathematics Contest 2025
      • TIMO
      • BBB Olympiad
      • HKIMO
    • Win 
      • Contest Winners
      • CIC 2024 Winners
      • CIC 2023 Winners
      • CIC 2022 Winners
    • Team 
      • About Us
      • Executives
    • …  
      • CKSTEM
      • Learn 
        • CKSTEM Courses
        • New Year, New Dreams, New Successes!
        • CKSTEM Family Challenges
        • Holiday Fun Activities
        • How to Outsmart AI?
        • Doses of Motivation
        • Talent V/S Core Values
        • Problem Solving Strategies
      • Compete 
        • Canadian Innovation Contests
        • Australian Mathematics Contest 2025
        • TIMO
        • BBB Olympiad
        • HKIMO
      • Win 
        • Contest Winners
        • CIC 2024 Winners
        • CIC 2023 Winners
        • CIC 2022 Winners
      • Team 
        • About Us
        • Executives
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    • CKSTEM
    • Learn 
      • CKSTEM Courses
      • New Year, New Dreams, New Successes!
      • CKSTEM Family Challenges
      • Holiday Fun Activities
      • How to Outsmart AI?
      • Doses of Motivation
      • Talent V/S Core Values
      • Problem Solving Strategies
    • Compete 
      • Canadian Innovation Contests
      • Australian Mathematics Contest 2025
      • TIMO
      • BBB Olympiad
      • HKIMO
    • Win 
      • Contest Winners
      • CIC 2024 Winners
      • CIC 2023 Winners
      • CIC 2022 Winners
    • Team 
      • About Us
      • Executives
    • …  
      • CKSTEM
      • Learn 
        • CKSTEM Courses
        • New Year, New Dreams, New Successes!
        • CKSTEM Family Challenges
        • Holiday Fun Activities
        • How to Outsmart AI?
        • Doses of Motivation
        • Talent V/S Core Values
        • Problem Solving Strategies
      • Compete 
        • Canadian Innovation Contests
        • Australian Mathematics Contest 2025
        • TIMO
        • BBB Olympiad
        • HKIMO
      • Win 
        • Contest Winners
        • CIC 2024 Winners
        • CIC 2023 Winners
        • CIC 2022 Winners
      • Team 
        • About Us
        • Executives
      Canadian Innovation Contests
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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.

        A Magic Square
        May 16, 2021
        In this week's problem, we need your help to crack a magic square. This magic square requires you to apply your factoring skills to find a product of numbers in one of its diagonal i.e. AxBXC. We have chosen this problem for a reason  this summer. Do you know why B always  feels very cold? It's...
        Pyramid of negative numbers
        May 2, 2021
        In this week's problem, we need you to help us find a secret code so that we can have a pool party inside a pyramid of negative numbers. We have chosen these negatives to keep all our participants negative from COVID.  Your safety is our primary concern, hence, use a mask and follow social...
        Establish A Mathematical Connection Between The Summer Contests
        April 24, 2021
        CKSTEM Summer Contests are starting soon. To give some flavour of the problems to the students, we will post a set of special brain fertilizers in the next few weeks. Let's start with our very own problem where you need to help us establish a mathematical connection between CKSTEM and our 3...
      • 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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