Add or subtract the two numbers on the spinners and try to complete a row of three. Are there some numbers that are good to aim for?
Can you find a reliable strategy for choosing coordinates that will locate the treasure in the minimum number of guesses?
Nicola has lost a piece of her 3D jigsaw. Can you work out the shape of the missing piece?
In this game the winner is the first to complete a row of three. Are some squares easier to land on than others?
Can you rearrange the cards to make a series of correct mathematical statements?
Some treasure has been hidden in a three-dimensional grid! Can you work out a strategy to find it as efficiently as possible?
Can you find a way to turn a rectangle into a square?
I added together some of my neighbours' house numbers. Can you explain the patterns I noticed?
The Number Jumbler can always work out your chosen symbol. Can you work out how?
Think of a number and follow the machine's instructions... I know what your number is! Can you explain how I know?
Think of a number and follow my instructions. Tell me your answer, and I'll tell you what you started with! Can you explain how I know?
Take a look at the video and try to find a sequence of moves that will untangle the ropes.
It would be nice to have a strategy for disentangling any tangled ropes...
Can you tangle yourself up and reach any fraction?