If you want to have a flatter tummy this is a great workout to try.
1 Minute Plank
30 Bicycle Crunches
20 Reverse Crunches
30 Russian Twists
20 V-Ups
*Repeat 4 times
For best results do this routine 3-4 times a week. If you are looking to speed up your progress add in a cardio workout or two.