The answer to your question depends on your answer to these questions .....
* what colours/prints etc?
* how many of each?
* Though I am a little confused, as you have said squares .... so are they 6x4-1/2" blocks? or some are 6" squares and some are 4-1/2" squares?
Start ... by sorting them into piles of matching fabrics.
Count the number of each.
Then show us a photo of what you have with the numbers! :)