![Four Triangles Puzzle](/sites/default/files/styles/medium/public/thumbnails/content-98-12-letme2-icon.jpg?itok=3LPRucul)
problem
Four Triangles Puzzle
Cut four triangles from a square as shown in the picture. How many different shapes can you make by fitting the four triangles back together?
![Zios and Zepts](/sites/default/files/styles/medium/public/thumbnails/content-00-06-penta2-icon.png?itok=rhaJFIAE)
problem
Zios and Zepts
On the planet Vuv there are two sorts of creatures. The Zios have 3 legs and the Zepts have 7 legs. The great planetary explorer Nico counted 52 legs. How many Zios and how many Zepts were there?
![Nine-Pin Triangles](/sites/default/files/styles/medium/public/thumbnails/content-id-2852-icon.png?itok=Ab8Twm9e)
problem
Nine-Pin Triangles
How many different triangles can you make on a circular pegboard that has nine pegs?
![Torn Shapes](/sites/default/files/styles/medium/public/thumbnails/content-id-4963-icon.jpg?itok=9xYJk5iR)
problem
Torn Shapes
These rectangles have been torn. How many squares did each one have inside it before it was ripped?
![Coordinate Challenge](/sites/default/files/styles/medium/public/thumbnails/content-id-5038-icon.jpg?itok=KAFdXOKr)
problem
Coordinate Challenge
Use the clues about the symmetrical properties of these letters to place them on the grid.
![Round the Dice Decimals 1](/sites/default/files/styles/medium/public/thumbnails/content-id-10438-icon.png?itok=eJOkIfXd)
problem
Round the Dice Decimals 1
Use two dice to generate two numbers with one decimal place. What happens when you round these numbers to the nearest whole number?
![Shapes on the Playground](/sites/default/files/styles/medium/public/thumbnails/content-01-05-penta1-icon.gif?itok=7LCVWeGE)
problem
Shapes on the Playground
Sally and Ben were drawing shapes in chalk on the school playground. Can you work out what shapes each of them drew using the clues?
![Fractions in a Box](/sites/default/files/styles/medium/public/thumbnails/content-02-03-penta5-icon.jpg?itok=n0Ea1sPn)
problem
Fractions in a Box
The discs for this game are kept in a flat square box with a square hole for each. Use the information to find out how many discs of each colour there are in the box.
![Light the Lights Again](/sites/default/files/styles/medium/public/thumbnails/content-id-7035-icon.gif?itok=E1T6ZYZN)
problem
Light the Lights Again
Each light in this interactivity turns on according to a rule. What happens when you enter different numbers? Can you find the smallest number that lights up all four lights?
![Symmetry Challenge](/sites/default/files/styles/medium/public/thumbnails/content-03-10-penta2-icon.gif?itok=ff7u5jjd)
problem
Symmetry Challenge
How many symmetric designs can you make on this grid? Can you find them all?