Did you solve it? The multi-choice maths quiz taking over the world
The Guardian ·

The answer to today’s Kangaroo puzzle Earlier today I set you the following problem from the international maths Kangaroo, a multiple choice challenge taken by more than seven million children every year. (For more details about this extraordinary event see the original story .) Here is is again with the solution. 2 3 4 5 6 Continue reading...