
Visualising and representing
-
-
problem
What numbers can we make now?
Imagine we have four bags containing numbers from a sequence. What numbers can we make now?
-
-
problem
Isosceles seven
Is it possible to find the angles in this rather special isosceles triangle?
-
problem
To swim or to run?
The famous film star Birkhoff Maclane wants to reach her refreshing drink. Should she run around the pool or swim across?
-
-
-
-
problem
Always perfect
Show that if you add 1 to the product of four consecutive numbers the answer is ALWAYS a perfect square.
-