Sequences

  • Break it up!
    problem
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    Break It Up!

    Age
    5 to 11
    Challenge level
    1 out of 3

    In how many different ways can you break up a stick of seven interlocking cubes? Now try with a stick of eight cubes and a stick of six cubes. What do you notice?

  • Domino sets
    problem
    Favourite

    Domino Sets

    Age
    7 to 11
    Challenge level
    1 out of 3

    How do you know if your set of dominoes is complete?