Hi there. Some photographs would help, then you can get an idea if the cards you have hold any valuable. I suspect based on the years you have listed these could be newspaper cards which don’t hold a great deal of value.
The newspaper cards hold minimal value as they are mass produced and still very common. The 03 set isn’t seen around as much these days even in folders, lucky to get $20ea, maybe slightly more for 03.
The 1990 singles are around $1/$2 each, maybe a touch more for an unmarked and mint logo. Condition is king on these early Scanlens releases.