Starting with the 6 in the bottom left corner, what is the highest total you can make, if you only move up or right, using the mathematical signs on the way?

+	4	−	1	+	3
2	+	4	−	1	+
−	3	+	2	−	2
2	−	4	+	3	−
+	3	−	1	+	2
6	+	1	−	2	+

Note: this puzzle is not interactive, and the numbers cannot be clicked.

Puzzle Copyright © Kevin Stone