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Vice Versa

Take 6 tokens, flip them over, and I will know exactly what you’re hiding!

Choose 6 tokens and turn them all over. The magician will know exactly which side they’re on. How does she do it? That’s for you to discover!

This trick is a great introduction to mathemagic. It’s easy to explain how and why it works. Younger children will love this trick: they will be able to replicate it in front of their friends and family. 


  • This trick requires little preparation and allows students to practise complementarity with natural numbers. Your students will be able to find the solution on their own.

  • Planning notes