Hi everyone, and welcome to the next post from our journey in the world of numbers. Where we last left off, I was telling you about natural numbers — the objects that most *naturally* appear when we make our first steps in the world of Mathematics. Well, today’s post is about the next most natural kind of mathematical objects: **negative numbers** and the new structure they form together with natural numbers called **integers**!

*This post is part of my series* Numbers, Arithmetic, and the Physical World.