Nano Digit is a simple game for training your brain and memory.Touch the numbers and align digits. (from 1 to last) Begin 3 - Align Numbers from 1-9Easy 4 - Align Numbers from 1-15Normal 5 - Align Numbers from 1-24Medium 6 - Align Numbers from 1-35Hard 7 - Align Numbers from 1-48Veteran 8 - Align Numbers from 1-63Expert 9 - Align Numbers from 1-80Extreme 10 - Align Numbers from 1-99