Press the green flag to start. Click anywhere for the next slide. This is a magic trick! You can try it yourself. (You need to pick numbers only 1-9) How this works? This is so easy! You need to add number 1 to number 2, then number 2 to number 3 and finally number 3 to number 1! Then you need to add number 2 to number 3 + number 1 (you need to count). If you want to see how you can draw it, you need to view the project! Hops you will enjoy, ty. <3 I found the music in pixaby! Sadly I don't know the creator :(