Timed Tests or No Timed Tests...Yes or No?

I've used math fact practice sheets and tests for a decade to help my students become more fluent with their math facts.  I believe that used correctly they can be the very thing that help your students be more confident with their math.

What is your opinion on this?  What do you do with your students to help them with math fact fluency?

I have also made my math fact practice sheets available for you at a discounted price.  I know they will help your students with their math fact fluency.