Moving up or right, what is the largest total you can make, using the mathematical signs along the way?

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

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

Puzzle Copyright © Kevin Stone