Peel-&-Stick on Old Concrete Question

I have this old house that sits on a slab. The old floor tiles are coming up leaving behind a glue residue. I don't want to spend too much money and would like to see if anyone has any tips for repair.
Should I sand the floor first?
Is there a product or paste that I could use to ensure the peel & stick's stay stuck?
Hints you may have would be greatly appreciated. I could post a photo if it will help.
Feel free to email me direct. Just remove the <nospam> on my email address when sending.
Thanks in advance,
Kevin
Peel-&-Stick on Old Concrete Question
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.