You can do them with your hands elevated to decrease their difficulty, or you can do them with your legs elevated to increase their difficulty—the weight will shift from your legs to your arms and shoulders.
If you're looking for even more of a challenge, try the pike push-up or the archer push-up, which simulates doing the exercise with just one arm. Or strengthen your core with the T-push-up or the close-grip push-up, keeping your abs tight with each rep.
Add at least one of these 12 push-up variations to your workouts each week. You'll have a ripped torso in no time