You're gonna be hard-pressed to level the floor if your squares are scattered all over the room. It would be less of a problem (sort of) if the tiles you're talking about are all 'together' / side-by-side, if you know what I mean.
The problem (if any) is you can't get anything (floor leveler included) in the seam where your tiles meet each other. If you do, well, they won't lay FLAT (and/or together.) Any 'foreign matter' between 2 tiles is not what you want. HOWEVER, you can level the floor up to about 1", give or take, from any seam. That way, you won't have the aforementioned problem.
Visit your local Home Center and tell the Floor/Tile folks what you need to do. THey'll get you the right leveler.
My best to ya and hope this helps.
Jay J -Moderator
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