Factors and multiples

  • 4 by 4 Mathdokus
    problem

    4 by 4 Mathdokus

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

    Can you use the clues to complete these 4 by 4 Mathematical Sudokus?

  • problem

    Factor lines

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

    Arrange the four number cards on the grid, according to the rules, to make a diagonal, vertical or horizontal line.

  • A chopped carrot beside a whole carrot. The carrot top sits away from the chopped carrot.
    problem

    Remainders

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

    I'm thinking of a number. My number is both a multiple of 5 and a multiple of 6. What could my number be?

  • problem

    Counting cogs

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

    Which pairs of cogs let the coloured tooth touch every tooth on the other cog? Which pairs do not let this happen? Why?

  • Got \It for Two
    game

    Got it for two

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

    Got It game for an adult and child. How can you play so that you know you will always win?

  • problem

    Three neighbours

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

    Take three consecutive numbers and add them together. What do you notice?

  • Factors and Multiples Game
    game
    Favourite

    Factors and multiples game

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

    A game in which players take it in turns to choose a number. Can you block your opponent?

  • 5 by 5 Mathdokus
    problem

    5 by 5 Mathdokus

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

    Can you use the clues to complete these 5 by 5 Mathematical Sudokus?

  • 6 by 6 Mathdokus
    problem

    6 by 6 Mathdokus

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

    Can you use the clues to complete these 6 by 6 Mathematical Sudokus?

  • 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?