Not sure whether daughters file this year and we don't claim as dependents?

My daughters are 18 and 20.  They both lived with us all last year.    One made $3600 at her job and the other $10,000.  They both file and we can't claim them as dependents, is that right?  Even though they lived with us all last year and we paid for food etc for them?  Trying to get taxes done to file fasfa and want to do it correctly.  Thanks.