Cool! In that puzzle game, what do I have to do?
You have to push numbers and symbols to form an equation equating to the goal value. E.g. if your goal is 3, you can push the blocks 1,+ and 2 in either
| 1 |
| + |
| 2 |
or
| 1 | + | 2 |
format, which forms the equation 1+2, thus solving the puzzle and unlocking the next level.
I have put other stuff in more detail on the game page itself.