`And you do Addition?' the White Queen asked. `What's one and one and one and one and one and one and one and one and one and one?'
The novelist Lewis Carrol was also a mathematician and inserted many maths references in his masterpiece ”Alice in Wonderland” and in his other literary works.
Did you know that ”4x5” can equal 12? Alice finds this unusual evidence in the second chapter of the book, called ”The Pool of tears”. Alice's Strange Multiplication is not impossible, but can be done using a number different from ten as a basis of the numbering system.
Alice’s example has been a real inspiration for our students who have been challenged to invent and solve new maths games: the students from Bucarest have proposed a puzzle to their Italian partners, and these ones have published the solution in our blog!