Year 9 Being resourceful

  • Xavi's T-shirt
    problem
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    Xavi's T-Shirt

    Age
    7 to 16
    Challenge level
    1 out of 3

    How much can you read into a T-shirt?

  • Special Numbers
    problem
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    Special Numbers

    Age
    11 to 14
    Challenge level
    1 out of 3

    My two digit number is special because adding the sum of its digits to the product of its digits gives me my original number. What could my number be?

  • How far does it move?
    problem
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    How Far Does It Move?

    Age
    11 to 14
    Challenge level
    1 out of 3

    Experiment with the interactivity of "rolling" regular polygons, and explore how the different positions of the dot affects the distance it travels at each stage.

  • What does random look like?
    problem
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    What Does Random Look Like?

    Age
    11 to 14
    Challenge level
    1 out of 3

    Engage in a little mathematical detective work to see if you can spot the fakes.

  • Growing Surprises
    problem
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    Growing Surprises

    Age
    11 to 14
    Challenge level
    1 out of 3

    Can you find the connections between linear and quadratic patterns?

  • Legs Eleven
    problem
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    Legs Eleven

    Age
    11 to 14
    Challenge level
    2 out of 3

    Take any four digit number. Move the first digit to the end and move the rest along. Now add your two numbers. Did you get a multiple of 11?

  • 1 Step 2 Step
    problem
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    1 Step 2 Step

    Age
    11 to 14
    Challenge level
    2 out of 3

    Liam's house has a staircase with 12 steps. He can go down the steps one at a time or two at time. In how many different ways can Liam go down the 12 steps?

  • Square coordinates
    problem
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    Square Coordinates

    Age
    11 to 14
    Challenge level
    2 out of 3

    A tilted square is a square with no horizontal sides. Can you devise a general instruction for the construction of a square when you are given just one of its sides?

  • Two's company
    problem
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    Two's Company

    Age
    11 to 14
    Challenge level
    2 out of 3

    Seven balls are shaken. You win if the two blue balls end up touching. What is the probability of winning?

  • Cosy corner
    problem
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    Cosy Corner

    Age
    11 to 14
    Challenge level
    2 out of 3

    Six balls are shaken. You win if at least one red ball ends in a corner. What is the probability of winning?

  • Speeding up, slowing down
    problem
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    Speeding Up, Slowing Down

    Age
    11 to 14
    Challenge level
    2 out of 3

    Experiment with the interactivity of "rolling" regular polygons, and explore how the different positions of the dot affects its speed at each stage.

  • Temperature
    problem
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    Temperature

    Age
    11 to 14
    Challenge level
    2 out of 3

    Is there a temperature at which Celsius and Fahrenheit readings are the same?

  • The Tower of Hanoi - three wooden poles, with several coloured rings of decreasing sizes on the middle pole.
    problem
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    Tower of Hanoi

    Age
    11 to 14
    Challenge level
    2 out of 3

    The Tower of Hanoi is an ancient mathematical challenge. Working on the building blocks may help you to explain the patterns you notice.

  • Reversals
    problem
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    Reversals

    Age
    11 to 14
    Challenge level
    2 out of 3

    Where should you start, if you want to finish back where you started?

  • Garden Shed
    problem
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    Garden Shed

    Age
    11 to 14
    Challenge level
    2 out of 3

    Can you minimise the amount of wood needed to build the roof of my garden shed?

  • Triangles to Tetrahedra
    problem
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    Triangles to Tetrahedra

    Age
    11 to 14
    Challenge level
    3 out of 3

    Imagine you have an unlimited number of four types of triangle. How many different tetrahedra can you make?

  • How Many Miles To Go?
    problem
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    How Many Miles to Go?

    Age
    11 to 14
    Challenge level
    3 out of 3

    How many more miles must the car travel before the numbers on the milometer and the trip meter contain the same digits in the same order?

  • Cuboids
    problem
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    Cuboids

    Age
    11 to 14
    Challenge level
    3 out of 3

    Can you find a cuboid that has a surface area of exactly 100 square units. Is there more than one? Can you find them all?

  • Up and across
    problem
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    Up and Across

    Age
    11 to 14
    Challenge level
    3 out of 3

    Experiment with the interactivity of "rolling" regular polygons, and explore how the different positions of the dot affects its vertical and horizontal movement at each stage.

  • Litov's Mean Value Theorem
    problem
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    Litov's Mean Value Theorem

    Age
    11 to 14
    Challenge level
    3 out of 3

    Start with two numbers and generate a sequence where the next number is the mean of the last two numbers...

  • Which solids can we make?
    problem
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    Which Solids Can We Make?

    Age
    11 to 14
    Challenge level
    3 out of 3

    Interior angles can help us to work out which polygons will tessellate. Can we use similar ideas to predict which polygons combine to create semi-regular solids?

  • Semi-regular Tessellations
    problem
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    Semi-Regular Tessellations

    Age
    11 to 16
    Challenge level
    1 out of 3

    Semi-regular tessellations combine two or more different regular polygons to fill the plane. Can you find all the semi-regular tessellations?

  • Funny Factorisation
    problem
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    Funny Factorisation

    Age
    11 to 16
    Challenge level
    2 out of 3

    Using the digits 1 to 9, the number 4396 can be written as the product of two numbers. Can you find the factors?

  • problem
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    Marbles in a Box

    Age
    11 to 16
    Challenge level
    2 out of 3

    How many winning lines can you make in a three-dimensional version of noughts and crosses?

  • Product Sudoku
    problem
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    Product Sudoku

    Age
    11 to 16
    Challenge level
    2 out of 3

    The clues for this Sudoku are the product of the numbers in adjacent squares.

  • Wipeout
    problem
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    Wipeout

    Age
    11 to 16
    Challenge level
    2 out of 3

    Can you do a little mathematical detective work to figure out which number has been wiped out?