A recap on binary
Before you delve into binary arithmetic, let’s have a quick recap on the binary counting system.
In denary we have 10 digits that we can use to represent any number we like.
0 through to
9. When we count and reach
9, we increment the number to the left of it, and then reset the
9 back to
In binary, we only have two digits to use,
0. When we reach
1 and want to go further, we need to place an additional
1 before it, and then reset back to 0.