Sum Numbers电脑版

Puzzle, Sum NumbersLevel1Place the pieces in the triangle so that all vertical and horizontal lines are positioned with their numbers so that their sum is 9.Level2Place the pieces in the triangle so that all vertical and horizontal lines are positioned with their numbers so that their sum is 21.Level2Place the pieces in the box so that all vertical, horizontal and diagonal lines are positioned with their numbers so that their sum is 15.