Addition and subtraction

  • Dotty Six
    problem
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    Dotty Six

    Age
    5 to 11
    Challenge level
    1 out of 3

    Dotty Six is a simple dice game that you can adapt in many ways.

  • Dicey Addition
    problem
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    Dicey Addition

    Age
    5 to 11
    Challenge level
    1 out of 3

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

  • Half Time
    problem
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    Half Time

    Age
    5 to 11
    Challenge level
    1 out of 3

    What could the half time scores have been in these Olympic hockey matches?

  • Take three numbers
    problem
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    Take Three Numbers

    Age
    5 to 11
    Challenge level
    1 out of 3

    What happens when you add three numbers together? Will your answer be odd or even? How do you know?

  • Ordering cards
    problem
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    Ordering Cards

    Age
    5 to 11
    Challenge level
    1 out of 3

    This problem is designed to help children to learn, and to use, the two and three times tables.

  • Doing and undoing
    problem
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    Doing and Undoing

    Age
    5 to 11
    Challenge level
    1 out of 3

    An investigation looking at doing and undoing mathematical operations focusing on doubling, halving, adding and subtracting.

  • Interactive Balance
    interactivity
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    Interactive Balance

    Age
    5 to 11
    Challenge level
    1 out of 3

    In this simulation of a balance, you can drag numbers and parts of number sentences on to the trays. Have a play!

  • Five Coins
    problem
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    Five Coins

    Age
    5 to 11
    Challenge level
    2 out of 3

    Ben has five coins in his pocket. How much money might he have?

  • problem
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    The Puzzling Sweet Shop

    Age
    5 to 11
    Challenge level
    2 out of 3

    There were cola bottles for 2p, mini eggs for 3p, marshmallow twists for 5p and lollipops for 7p in the sweet shop. What could each of the children buy with their money?

  • Make 37 Poster
    problem
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    Make 37

    Age
    5 to 11
    Challenge level
    2 out of 3

    Four bags contain a large number of 1s, 3s, 5s and 7s. Can you pick ten numbers from the bags so that their total is 37?