Being collaborative

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Favourite

Digit Discovery

Age

7 to 11

Challenge level

1 out of 3

Here is an interesting property about two sets of digits. Can you work out what the digits might be?
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Fraction Lengths

Age

7 to 11

Challenge level

2 out of 3

Can you find combinations of strips of paper which equal the length of the black strip? If the length of the black is 1, how could you write the sum of the strips?
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Favourite

Price Match

Age

7 to 11

Challenge level

2 out of 3

Can you find pairs of differently sized windows that cost the same?
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Favourite

Pouring Problem

Age

7 to 11

Challenge level

2 out of 3

What do you think is going to happen in this video clip? Are you surprised?
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Favourite

Roll These Dice

Age

7 to 11

Challenge level

2 out of 3

Roll two red dice and a green dice. Add the two numbers on the red dice and take away the number on the green. What are all the different possible answers?
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Favourite

Making Boxes

Age

7 to 11

Challenge level

2 out of 3

Cut differently-sized square corners from a square piece of paper to make boxes without lids. Do they all have the same volume?
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Favourite

Making Cuboids

Age

7 to 11

Challenge level

2 out of 3

Let's say you can only use two different lengths - 2 units and 4 units. Using just these 2 lengths as the edges how many different cuboids can you make?
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Favourite

Maze 100

Age

7 to 11

Challenge level

2 out of 3

Can you go through this maze so that the numbers you pass add to exactly 100?
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Favourite

Domino Square

Age

7 to 11

Challenge level

2 out of 3

Use the 'double-3 down' dominoes to make a square so that each side has eight dots.
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Favourite

Egyptian Rope

Age

7 to 11

Challenge level

2 out of 3

The ancient Egyptians were said to make right-angled triangles using a rope with twelve equal sections divided by knots. What other triangles could you make if you had a rope like this?