problem
Cherry buns
Sam's grandmother has an old recipe for cherry buns. She has enough
mixture to put 45 grams in each of 12 paper cake cases. What was
the weight of one egg?
The Tower of Hanoi is an ancient mathematical challenge.
Here is a machine with four coloured lights. Can you make two lights switch on at once? Three lights? All four lights?
Can you work out the fraction of the original triangle that is covered by the green triangle?