Conjecturing and generalising

  • Dicey Operations
    game
    Favourite

    More Dicey operations

    Age
    7 to 14
    Challenge level
    filled star empty star empty star

    In these multiplication and division games, you'll need to think strategically to get closest to the target.

  • Xavi's T-shirt
    problem

    Xavi's T-shirt

    Age
    7 to 16
    Challenge level
    filled star empty star empty star

    How much can you read into a t-shirt?

  • Seeing Rhombuses
    problem

    Seeing rhombuses

    Age
    7 to 11
    Challenge level
    filled star filled star empty star

    Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a rhombus.

  • Seeing Parallelograms
    problem

    Seeing parallelograms

    Age
    7 to 11
    Challenge level
    filled star empty star empty star

    Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a parallelogram.

  • Rhombus It
    problem

    Rhombus it

    Age
    11 to 16
    Challenge level
    filled star filled star empty star

    Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a rhombus.

  • Parallelogram It
    problem

    Parallelogram it

    Age
    11 to 16
    Challenge level
    filled star empty star empty star

    Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a parallelogram.

  • What numbers can we make now?
    problem

    What numbers can we make now?

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    Imagine we have four bags containing numbers from a sequence. What numbers can we make now?

  • More Less is More
    problem

    More less is more

    Age
    7 to 14
    Challenge level
    filled star empty star empty star
    In each of these games, you will need a little bit of luck, and your knowledge of place value to develop a winning strategy.
  • Celebrate 25 Years of NRICH
    game

    Celebrate 25 years of NRICH

    Age
    5 to 14

    To celebrate NRICH's 25th birthday, why not play this special version of our classic game, Got It? Can you devise a strategy so that you will always win?