### Babylon Numbers

Can you make a hypothesis to explain these ancient numbers?

### Ishango Bone

Can you decode the mysterious markings on this ancient bone tool?

### White Box

This game challenges you to locate hidden triangles in The White Box by firing rays and observing where the rays exit the Box.

# Arithmagons

##### Stage: 4 Challenge Level:

How does the sum of the numbers at the edges relate to the sum of the numbers at the vertices?

It might help to label the numbers at the vertices $A$, $B$ and $C$ and then express the edge numbers in terms of $A$, $B$ and $C$.