Can you deduce which Olympic athletics events are represented by the graphs?
Four friends must cross a bridge. How can they all cross it in just 17 minutes?
Can you find a strategy that ensures you get to take the last biscuit in this game?
Can you select the missing digit(s) to find the largest multiple?
Can you work out what step size to take to ensure you visit all the dots on the circle?
What happens if we change the rules and make the usual straight number line into a circle?
Can you find a way of predicting the value of large square numbers with the help of our power modulo calculator?
Investigate what happens when we add or multiply numbers using modular arithmetic.