Mind challenging puzzle for kids all the horizontal and vertical lines total should be 15 ratnas magic puzzle maths total 15. This number puzzle has 5 numbers arranged in a square. The goal of the puzzle is to re-arrange the numbers so each of the 12 rows add up to 15. This is a perfect puzzle for kids to learn addition in fun and play way. Perfect for parents to teach their kids the basic fundamentals of addition concept. Kids will have fun while solving the puzzle. This will help them develop logical and cognitive skills.