### What’s 1+1? It’s obviously 2, right? How about 100+10? Well, that’s obviously 110…right? Believe it or not, wrong…at least not when it comes to binary numbers. It can be kind of hard to wrap your head around, but as soon as we move from our cozy decimal numbered world into a world of binary numbers, things can seem a little confusing. But the truth is that binary addition is no harder than decimal addition. And it’s also an incredibly important part of the modern world. How does it work? And why is it so important? (Hint: think computers and calculators!) Stay tuned because those are exactly the topics we’ll be talking about over the next few weeks.

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## The Four Rules of Binary Addition

### As I said before, binary addition is no harder than decimal addition. In fact, all you really have to do is remember and understand four simple rules: 0 + 0 = 0, 0 + 1 = 1, 1 + 0 = 1, and 1 + 1 = 10. The first three rules shouldn’t be at all surprising since they look just like ordinary decimal addition. These rules say that adding 0 to itself gives 0 and adding 0 and 1 (in either order) gives 1. No big surprise!

Binary addition is no harder than decimal addition.

## Wrap Up

### Until next time, this is Jason Marshall with The Math Dude’s Quick and Dirty Tips to Make Math Easier. Thanks for reading, math fans!

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