Mental calculations

  • A Square of Numbers
    problem
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    A Square of Numbers

    Age
    7 to 11
    Challenge level
    1 out of 3

    Can you put the numbers 1 to 8 into the circles so that the four calculations are correct?

  • Carrying Cards
    problem
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    Carrying Cards

    Age
    7 to 11
    Challenge level
    1 out of 3

    These rows of children are holding cards with numbers on them. Can you work out the missing numbers?

  • Shape Times Shape
    problem
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    Shape Times Shape

    Age
    7 to 11
    Challenge level
    1 out of 3

    These eleven shapes each stand for a different number. Can you use the number sentences to work out what they are?

  • Which symbol?
    problem
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    Which Symbol?

    Age
    7 to 11
    Challenge level
    1 out of 3

    Choose a symbol to put into the number sentence.

  • How do you do it?
    problem
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    How Do You Do It?

    Age
    7 to 11
    Challenge level
    1 out of 3

    This group activity will encourage you to compare different calculation strategies.

  • Follow the numbers
    problem
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    Follow the Numbers

    Age
    7 to 11
    Challenge level
    1 out of 3

    What happens when you add the digits of a number then multiply the result by 2?

  • Journeys in Numberland
    problem
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    Journeys in Numberland

    Age
    7 to 11
    Challenge level
    1 out of 3

    Use the maps to work out the number of points each route through Numberland scores.

  • problem
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    Fifteen Cards

    Age
    7 to 11
    Challenge level
    1 out of 3

    Can you use the information to find out which cards I have used?

  • A yellow bag containing some threes.
    problem
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    Play to 37

    Age
    7 to 11
    Challenge level
    1 out of 3

    In this game the winner is the first to make the total 37. Is this a fair game?

  • Multiply Multiples 1
    problem
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    Multiply Multiples 1

    Age
    7 to 11
    Challenge level
    1 out of 3

    Can you complete this calculation by filling in the missing numbers?