Hi there! I think I have a good youtube video for you to try out that's an entire ab workout. Give it a try!
He tends to move rather quickly with the exercises so what I do is pause the video once I see what he's doing and how he's doing it, and when I finish with that I unpause and move to the next exercise...and just keep repeating until I'm all done.
Trust me, his workout WORKS! I remember the day after I did this guys workout my entire front side was soooooo sore. It was great!
Just do it once if you're just starting out and trust me, you'll feel it the next day. And incase you're wondering, he does 10 reps per different exercise he does.
Good luck and I hope you like it.