A lot of beginners are amazed when they learn how much putting affects their score. How many times have you hit the green in regulation but scored a bogey or worse simply because you missed your putts? What I hate is when I hit the ball stiff to within 2 to 7 feet and miss my putt for birdie or par. Amateurs, including beginners, don't make putts over 8 feet on a regular basis. Within 7 feet though, we should be able to make a good majority of them. We can easily improve our golf scores if we concentrate on making short putts. Only practice will make us a better putter. You want to practice long and mid range putts but typically they don't go in on one stroke. These types of putts should be practiced to get the ball within 3 feet of the hole. However, it is more important to practice your short putts. Pro golfers realize this and it would be good that we do too. A lot of Tour players have missed 2 to 3 footers to miss the cut on a Friday, missing their chance to play for the money on the weekend.
So beginners, try this drill: find a hole on the practice green and place 6 equally spaced tee's around the hole 1 foot from the hole. Hit putts from each tee until you make it, then move onto the next tee. Your goal is to make all 6 putts. Once you have made all 6 then move the tee's out to 2 feet and repeat the drill. Keep doing this until you have reached 7 foot from the hole.
This is a good drill that helps you to putt from all angles. It also teaches you how to play uphill and downhill and every break. Also you will be teaching yourself repetition and confidence. Use the same setup every time, don't rush the stroke, and listen for the ball to hit the bottom of the cup. Do this drill religiously and you will see a large improvement in your short range putting skills and your score will, in time, reflect it.