The fundamental insight that originally led to the creation of this formula probably started with the observation that the sum of the first term and last term in an arithmetic series is always the same as the sum of the 2nd and 2nd-to-last, 3rd and 3rd-to-last, etc. Try it in your head with a simple series, such as whole numbers from 1 to 10
So it's 6. And that makes sense. 3 plus 3 is 6 or 2 plus 2 plus 2 is 6. So every time here we're going to increase by 3. You see the pattern. 3 times 3 is 9. 3 plus 3 plus 3. So we went from 3 to 6 to 9. So 3 times 4 is going to be 12. I'm just adding 3 every time. 12 plus 3 is 15. 15 plus 3 is 18. 18 plus 3 is 21. 21 plus 3 is 24. 24 plus 3 is 27. Pick 3 How-to-Play Brochure. STEP 1. Get a Pick 3 playslip from your favorite Texas Lottery Ā® retailer or create a play using the Texas Lottery App. . Pick three (3) single-digit numbers from "0" to "9" or mark the "QP" box and your numbers will be selected for you. OR, simply ask your lottery retailer for a "Quick Pick" and the terminal will pick all your numbers!