123s +-x÷ is a Search Puzzle for Math Training. Lets enjoy arithmetic.
+-x÷ and 1,2,3,4,5,6,7,8,9,36 categorys,
Each play has 99 questions.
QAs example:Case of + 9
(from 1 to 99) + 9 => 99 questions random.
If your iPhone supports Game Center, you can enjoy leaderboards. But Game Center leaderboards supports +-x÷ and 2,3,5,6,8,9, 24 categorys,