Factors and multiples

  • Dicey Array
    game
    Favourite

    Dicey array

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

    Watch the video of this game being played. Can you work out the rules? Which dice totals are good to get, and why?

  • 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?

  • Cuisenaire environment
    interactivity
    Favourite

    Cuisenaire environment

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

    An environment which simulates working with Cuisenaire rods.

  • Making Pathways
    problem

    Making pathways

    Age
    7 to 11
    Challenge level
    filled star empty star empty star
    Can you find different ways of creating paths using these paving slabs?
  • Count Me In
    problem

    Count me in

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

    How do you know whether you will reach these numbers when you count in steps of six from zero?

  • Space distances
    problem

    Space distances

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

    This task focuses on distances travelled by the asteroid Florence. It's an opportunity to work with very large numbers.

  • Satisfying Four Statements
    problem

    Satisfying four statements

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

    Can you find any two-digit numbers that satisfy all of these statements?

  • Odds and Threes
    game

    Odds and threes

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

    A game for 2 people using a pack of cards Turn over 2 cards and try to make an odd number or a multiple of 3.

  • Down to Nothing
    game

    Down to nothing

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

    A game for 2 or more people. Starting with 100, subratct a number from 1 to 9 from the total. You score for making an odd number, a number ending in 0 or a multiple of 6.