Popsugar Fitness Workouts The Best Ab Workouts The 20 Greatest Ab Workouts That Will Tone, Sculpt, and Strengthen Your Abs June 21, 2018 by Tamara Pridgett View On One Page Photo 2 of 20 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Flatten Your Abs With This Ultrafast Workout Who said you need to spend countless hours working on your abs? Take two minutes to flatten your abs with this four-move workout. Previous Next Start Slideshow WorkoutsStrength TrainingBodyweight WorkoutsAb WorkoutsCore ExercisesBeginner WorkoutsAb Exercises