## Problems

##### Age 5 to 7 Challenge Level:

We have a box of cubes, triangular prisms, cones, cuboids, cylinders and tetrahedrons. Which of the buildings would fall down if we tried to make them?

##### Age 5 to 7 Challenge Level:

Is there a best way to stack cans? What do different supermarkets
do? How high can you safely stack the cans?

##### Age 5 to 7 Challenge Level:

How many balls of modelling clay and how many straws does it take to make these skeleton shapes?

##### Age 7 to 11 Challenge Level:

If you had 36 cubes, what different cuboids could you make?

##### Age 7 to 11 Challenge Level:

Can you make a 3x3 cube with these shapes made from small cubes?

##### Age 7 to 11 Challenge Level:

How can you put five cereal packets together to make different
shapes if you must put them face-to-face?

##### Age 7 to 11 Challenge Level:

Make a cube out of straws and have a go at this practical
challenge.

##### Age 7 to 14 Challenge Level:

The image in this problem is part of a piece of equipment found in the playground of a school. How would you describe it to someone over the phone?

##### Age 7 to 14 Challenge Level:

We start with one yellow cube and build around it to make a 3x3x3 cube with red cubes. Then we build around that red cube with blue cubes and so on. How many cubes of each colour have we used?

##### Age 7 to 16 Challenge Level:

Which of the following cubes can be made from these nets?

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