The average life span of a $5 bill is 16 months. 





Goal: Add the 3 numbers on each line, and all the sums of the lines must be equal.
Hint: The magic sum is the hint. Divide the magic sum by 3 and you will get the value (number) that must be in the center in order to complete the puzzle.
Directions
 To start a new game, click on the New Puzzle button.
 Click on a bubble on the outside to swap the number positions.
 A solid bubble means a valid number placement on the line.


