• Choose an age group from the top right dropdown.
• Choose a level from the left side
• Choose an operation from the right side -if applicable-
• The higher the age group, the more difficulty & operation options that you get.
• If you are confident in your math skills, try the Hard Level & choose Mix Mode.
• I didn't finish the Arabic version. Only the English version is working right now.

Finished on 23-07-2014