Keyboards in the UK have a slightly different layout to those in the US.
I think I prefer US keyboards, but obviously I have a soft spot for UK keyboards.
US keybaords usually a double-wide enter key. Backslash is above it. UK keyboards have a tall, narrow enter key. Backslash is either beside it or beside Z. (UK keyboards often have a narrower shift key as a result.)
Hash ('#') can be more awkard to type on a UK keyboard: shift-3 is usually the pound sign.
The number two usually has the double quote symbol above it (except for apple keyboards) in the UK, so @ is near the enter key. This is just wrong: the apple way is the right way.