Place value

  • Two Spinners
    problem

    Two spinners

    Age
    5 to 7
    Challenge level
    filled star empty star empty star
    What two-digit numbers can you make with these two dice? What can't you make?
  • Snail One Hundred
    game
    Favourite

    Snail one hundred

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

    In this game, you throw a dice and move counters along the snail's body and in a spiral around the snail's shell. It is about understanding tens and ones.

  • That number square
    problem

    That number square

    Age
    5 to 11
    Challenge level
    filled star empty star empty star
    Exploring the structure of a number square: how quickly can you put the number tiles in the right place on the grid?
  • Always a multiple?
    problem

    Always a multiple?

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

    Think of a two digit number, reverse the digits, and add the numbers together. Something special happens...

  • Method in multiplying madness?
    problem

    Method in multiplying madness?

    Age
    7 to 14
    Challenge level
    filled star filled star empty star
    Watch our videos of multiplication methods that you may not have met before. Can you make sense of them?
  • Song Book
    problem

    Song book

    Age
    7 to 11
    Challenge level
    filled star filled star filled star
    A school song book contains 700 songs. The numbers of the songs are displayed by combining special small single-digit cards. What is the minimum number of small cards that is needed?
  • Dicey Addition
    problem

    Dicey addition

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

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

  • Clickety Click
    problem

    Clickety click

    Age
    16 to 18
    Challenge level
    filled star empty star empty star
    What is the sum of: 6 + 66 + 666 + 6666 ............+ 666666666...6 where there are n sixes in the last term?
  • Double with 1 to 9
    problem

    Double with 1 to 9

    Age
    11 to 14
    Challenge level
    filled star filled star empty star
    Can you find a number and its double using the digits $1$ to $9$ only once each?
  • Light the Lights
    problem

    Light the lights

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

    Investigate which numbers make these lights come on. What is the smallest number you can find that lights up all the lights?