Mental calculations

  • problem
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    The Brown Family

    Age
    5 to 7
    Challenge level
    3 out of 3

    Use the information about Sally and her brother to find out how many children there are in the Brown family.

  • The Tall Tower
    problem
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    The Tall Tower

    Age
    5 to 7
    Challenge level
    3 out of 3

    As you come down the ladders of the Tall Tower you collect useful spells. Which way should you go to collect the most spells?

  • I'm Eight
    problem
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    I'm Eight

    Age
    5 to 11
    Challenge level
    1 out of 3

    Find a great variety of ways of asking questions which make 8.

  • Magnifying glass
    problem
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    Number Detective

    Age
    5 to 11
    Challenge level
    1 out of 3

    Follow the clues to find the mystery number.

  • Multiplication Tables - matching cards
    problem
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    Multiplication Tables - Matching Cards

    Age
    5 to 11
    Challenge level
    1 out of 3

    Practise your tables skills and try to beat your previous best score in this interactive game.

  • Strike it out
    problem
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    Strike It Out

    Age
    5 to 11
    Challenge level
    1 out of 3

    Use your addition and subtraction skills, combined with some strategic thinking, to beat your partner at this game.

  • 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.

  • 4 Dom
    problem
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    4 Dom

    Age
    5 to 11
    Challenge level
    3 out of 3

    Use these four dominoes to make a square that has the same number of dots on each side.

  • Build it up
    problem
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    Build It Up

    Age
    7 to 11
    Challenge level
    1 out of 3

    Can you find all the ways to get 15 at the top of this triangle of numbers? Many opportunities to work in different ways.

  • Buying a Balloon
    problem
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    Buying a Balloon

    Age
    7 to 11
    Challenge level
    1 out of 3

    Lola bought a balloon at the circus. She gave the clown six coins to pay for it. What could Lola have paid for the balloon?