Being collaborative

  • A Cartesian Puzzle
    problem
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    A Cartesian Puzzle

    Age
    7 to 11
    Challenge level
    1 out of 3

    Find the missing coordinates which will form these eight quadrilaterals. These coordinates themselves will then form a shape with rotational and line symmetry.

  • Plenty of Pens
    problem
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    Plenty of Pens

    Age
    7 to 11
    Challenge level
    1 out of 3

    Amy's mum gave her £2.50 to spend. She bought four times as many pens as pencils and was given 40p change. How many of each did she buy?

  • problem
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    Multiplication Squares

    Age
    7 to 11
    Challenge level
    1 out of 3

    Can you work out the arrangement of the digits in the square so that the given products are correct? The numbers 1 - 9 may be used once and once only.

  • A Puzzling Cube
    problem
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    A Puzzling Cube

    Age
    7 to 11
    Challenge level
    1 out of 3

    Here are the six faces of a cube - in no particular order. Here are three views of the cube. Can you deduce where the faces are in relation to each other and record them on the net of this cube?

  • Square Corners
    problem
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    Square Corners

    Age
    7 to 11
    Challenge level
    1 out of 3

    What is the greatest number of counters you can place on the grid below without four of them lying at the corners of a square?

  • problem
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    Clocks

    Age
    7 to 11
    Challenge level
    1 out of 3

    These clocks have been reflected in a mirror. What times do they say?

  • problem
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    Which Is Quicker?

    Age
    7 to 11
    Challenge level
    1 out of 3

    Which is quicker, counting up to 30 in ones or counting up to 300 in tens? Why?

  • Trebling
    problem
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    Trebling

    Age
    7 to 11
    Challenge level
    1 out of 3

    Can you replace the letters with numbers? Is there only one solution in each case?

  • Fractional Triangles
    problem
    Favourite

    Fractional Triangles

    Age
    7 to 11
    Challenge level
    1 out of 3

    Use the lines on this figure to show how the square can be divided into 2 halves, 3 thirds, 6 sixths and 9 ninths.

  • How Big Are Classes 5, 6 and 7?
    problem
    Favourite

    How Big Are Classes 5, 6 and 7?

    Age
    7 to 11
    Challenge level
    1 out of 3

    Use the two sets of data to find out how many children there are in Classes 5, 6 and 7.