Secondary Catalogue
Addition and Subtraction
Professor Dave Explains Mathematics
Alright, so we've decided to learn all of the maths, but where shall we start? Well, let's start at the beginning. The first kind of math we developed was simple arithmetic. We needed this at the dawn of civilisation to communicate very simple ideas. Most of us can add small numbers together easily, but is there any more we can say about these operations? Let's find out!
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