It's simple to add binary numbers but a little hard to add hex
numbers. We'll start with binary.

1010

+

__0101__
1111

See? It's easy!
All you have to do is add 1+0 but it gets a little harder.

1

1001

+

__0101__
1110

Do you see how there was a 1+1 in there? When that happens you put
a zero there and put a 1 over the one behind it.

1 1

0101

+

__0011__
1111

How you add hex isn't very easy. If you know how to count in hex it's easier though.

8

A

You would think I should have put a ten there right? Well in hex it doesn't work that way because A=10 in hex.

9

C

When you start to overlap it get's even harder.

8

10

Now that must look even weirder right? Because normally you would say 8+8=16. Well 1 0 is actually the first number you get to when you overlap. The next numbers in hex are 11,12,13,14,15,16,17,18,19,1A,1B,1C,1D,1E,1F,20,21,22,23,24,25,26 etc.

How you add hex isn't very easy. If you know how to count in hex it's easier though.

8

__+2__A

You would think I should have put a ten there right? Well in hex it doesn't work that way because A=10 in hex.

9

__+3__C

When you start to overlap it get's even harder.

8

__+8__10

Now that must look even weirder right? Because normally you would say 8+8=16. Well 1 0 is actually the first number you get to when you overlap. The next numbers in hex are 11,12,13,14,15,16,17,18,19,1A,1B,1C,1D,1E,1F,20,21,22,23,24,25,26 etc.

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