Expression

Expression, a math based puzzle

Your goal is to write a mathematical expression with the tiles available on screen, so that the expression matches the result shown after the "=" symbol on the bottom line.

You can use some of the tiles or all of them. If you manage to write a correct expression made up of every available tile, you'll get a skip point, which allows you to skip a level if you find it too difficult.

Note that you can concatenate the "+" and "-" operators: 

[2++3 = 2+3 = 5] [6--3 = 6-(-3) = 9]

Have fun!