The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
Mysterious Operators offers you the chance to have fun while reviewing the rules of calculation.To play, just choose the correct operators (+, -, , ) to make the displayed expression equal to the target number.The game's addictive and will make you a mental math champ!