Skip to content# Coins in Twoland

**Classifications**

Author(s): Joshua Zucker

In Twoland, the only money is coins with value 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, and so on. How many ways can change be given, following Twoland’s strict rules? In this whimsical session, participants will practice precision and organizational skills.
This session is also suitable for student math circles and the classroom.