When a secret agent wants to send a message, they write it in code so their enemies can't read it. Codebreakers need to develop mathematical skills like working backwards, being systematic, and ruling out possibilities in order to crack enemy codes and save the day. These problems will give you the chance to train your brain in order to become a better code cracker!
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Satisfying Statements
Can you find any two-digit numbers that satisfy all of these statements?
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Favourite
Statement Snap
You'll need to know your number properties to win a game of Statement Snap...
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Favourite
Charlie's delightful machine
Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?