MATH! Can math be a category? I can add more elements if you want! Math Category: Addition Subtraction Multiplication Division Invention Category: Calculator Human Category: Mathematician
@Kittytale2 for UNIVERSAL LAB!! Addition: Idea + Day Subtraction: Idea + Night Multiplication: Addition + Addition Division: Multiplication + Subtraction Calculator: Addition/Subtraction/Multiplication/Division + Computer Mathematician: Human + Calculator