1 out of 3
Can you find the values at the vertices when you know the values on the edges?
1 out of 3
Draw some quadrilaterals on a 9-point circle and work out the angles. Is there a theorem?
1 out of 3
Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?
1 out of 3
Sequences of multiples keep cropping up...
1 out of 3
Here is a chance to play a fractions version of the classic Countdown Game.
1 out of 3
Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a parallelogram.
1 out of 3
The number in the square is the mean of the four numbers surrounding it. Can you find the missing numbers?
2 out of 3
How did the the rotation robot make these patterns?
2 out of 3
How many winning lines can you make in a three-dimensional version of noughts and crosses?
2 out of 3
If you can copy a network without lifting your pen off the paper and without drawing any line twice, then it is traversable. Decide which of these diagrams are traversable.
