This is part of our collection of favourite rich tasks arranged by topic.

If you are a teacher, you can find the whole collection on our Primary Curriculum teacher page.
Alternatively, if you are a student, you'll find the same problems on our Primary Curriculum student page.


  • Snail One Hundred
    game
    Favourite

    Snail One Hundred

    Age
    5 to 7
    Challenge level

    In this game about tens and ones, you move counters along the snail's body and in a spiral around its shell.

  • Two flowers with the numbers 15 and 16 on them
    problem
    Favourite

    Butterfly Flowers

    Age
    5 to 7
    Challenge level

    Which two butterfly numbers add to make the flower number of 15? What about 16?

  • Our Numbers
    problem
    Favourite

    Our Numbers

    Age
    5 to 7
    Challenge level

    Which special types of numbers will you make with these tens and ones spinners?

  • Writing Digits
    problem
    Favourite

    Writing Digits

    Age
    5 to 7
    Challenge level

    Lee wrote some numbers. What do you think she wrote next? How many digits did she write altogether?

  • 6 Beads
    problem
    Favourite

    6 Beads

    Age
    5 to 7
    Challenge level

    What numbers can you make by putting beads onto this tens and ones abacus?

  • Magnifying glass
    problem
    Favourite

    Number Detective

    Age
    5 to 11
    Challenge level

    Follow the clues to find the mystery number.

  • Dicey Addition
    problem
    Favourite

    Dicey Addition

    Age
    5 to 11
    Challenge level

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

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