Start in the bottom left corner and move either up or right, one square at a time, using the numbers and the mathematical signs along the way. What is the largest total you can make?
| + | 2 | – | 4 | + | 2 |
| 2 | + | 2 | – | 2 | + |
| – | 1 | + | 3 | – | 3 |
| 2 | – | 3 | + | 1 | – |
| + | 1 | – | 3 | + | 2 |
| 3 | + | 3 | – | 2 | + |
Note: this puzzle is not interactive, and the numbers cannot be clicked.