These are jumbled books

English as a Second Language English Vocabulary, Grammar and Idioms
1

Hi teachers,

Are these sentences correct?

Adj. + noun

I saw jumbled books on the floor.
There are jumbled books in your room.
These are jumbled books.

Many thanks.

2

If you mean that the books were all mixed up and lying in a heap, I would use ‘jumbled’ like this:

I saw a jumble of books on your floor.
I saw a jumbled pile of books on your floor.

There’s a jumble of books in your room.
There’s a heap of jumbled books in your room.

If you mean they are out of order, then I would say:
These books are jumbled up.

3

Thank you.
In #1 and #3, it is used as a noun, and in #2 and #4, it is used as an adjective. Am I right?