What if you could INVENT your own mathematical operation not just +, -, x, / but something completely new? That's exactly what BINARY OPERATIONS allow! Avinto introduces you to one of algebra's most creative concepts: a rule that combines ANY two numbers in a unique way you define! Once you understand binary operations, you'll understand how computer programming creates custom calculations, how cryptography scrambles data, and why mathematicians can build entirely new number systems! This is abstract maths becoming real and it's more fun than it sounds! Ready to invent your own operation?