Push-Up Wide

How to do it

With your hands wide apart, support your body on your toes and hands in a plank position. Your elbows should be extended and your body straight. Do not allow your hips to sag. This will be your starting position.
To begin, allow the elbows to flex, lowering your chest to the floor as you inhale.
Using your pectoral muscles, press your upper body back up to the starting position by extending the elbows. Exhale as you perform this step.
After pausing at the contracted position, repeat the movement for the prescribed amount of repetitions.

What muscles does the Push-Up Wide work?: Mainly the chest, with help from the abs, shoulders, triceps.
What equipment do I need?: Nothing but your bodyweight.
Is it good for beginners?: Yes, it is rated beginner level.
How do I track progress on it?: Log each set and beat the weight or reps from last time. Liftrung shows your last set beside the next one and estimates your one-rep max from your sets.

Exercise descriptions: free-exercise-db, public domain.