Use the provided number and operators to reach your goal of subtracting 1 from your number.  How hard can it be?

How to play

Drag numbers and operators to the equation to obtain the correct result.

You can remove elements by dragging them out.

Select elements to group them in parentheses. (drag with your mouse to select)

Click on parentheses to remove them.

Implicit multiplications (i.e.2(1+1)) are not allowed.

Click the  icon to get a hint (not available on the first two levels).

Assets credits

Ui: Silent GUI by Prinbles
Background: Backgrounds and Textures by Morain
Sounds: lolurio's FREE Cozy Game UI SFX Pack and Universal UI/Menu Soundpack by Cyrex Studios
Music: "Cafe de Bard" by Ovani Sound
Icons by sbed, Delapouite and Lorc from game-icons.net
Fonts: Heavitas by Deepak Dogra and Wah Iki by wepfont