A Numbers Puzzle Game
From easy to rather complex levels...
Here is what other people think
"...for those who like a bit more brain-training in their games, without sacrificing the ability to set it down quickly when necessary, Zero might be just what the mathematician ordered."
"Zero – A Numbers Puzzle Game is addictive and quite easy to play but hard to master. The perfect combination for a great brain teaser. I personally enjoy playing strategic brain teaser games as they can be a stress reliever for me. Zero definitely does not disappoint."
"All said and done the game is simple in its nature but very addictive, and also very difficult. We recommend downloading it and giving it a try."