Cosy Corner
Six balls are shaken. You win if at least one red ball ends in a corner. What is the probability of winning?
Six balls are shaken. You win if at least one red ball ends in a corner. What is the probability of winning?
Experiment with the interactivity of "rolling" regular polygons, and explore how the different positions of the dot affects its speed at each stage.
Using your knowledge of the properties of numbers, can you fill all the squares on the board?
Take a look at the multiplication square. The first eleven triangle numbers have been identified. Can you see a pattern? Does the pattern continue?
Different combinations of the weights available allow you to make different totals. Which totals can you make?
My measurements have got all jumbled up! Swap them around and see if you can find a combination where every measurement is valid.
Can you recreate squares and rhombuses if you are only given a side or a diagonal?