What is the smallest number of answers you need to reveal in order
to work out the missing headers?
Can you find the values at the vertices when you know the values on
Can you recreate squares and rhombuses if you are only given a side
or a diagonal?
Can you find the hidden factors which multiply together to produce
each quadratic expression?
Can you find the values at the vertices when you know the values on the edges of these multiplication arithmagons?
Charlie likes to go for walks around a square park, while Alison likes to cut across diagonally. Can you find relationships between the vectors they walk along?
Play the game of Poison, Antidote, Water to start to understand the mathematics of associativity and groups.
We received two very good solutions to this problem - one
identified an important relationship, the other proved it.
Go to last month's problems to see more solutions.
John Mason describes the thinking behind this month's tasks.
How do this month's tasks help to 'educate awareness'?
The computer starts with all the lights off, but then clicks 3, 4
or 5 times at random, leaving some lights on. Can you switch them