Abacus - Dancing Fingers !

WHEN  ANCIENT  WISDOM  MEETS  MODERN  TECHNOLOGY !
BEAUTIFUL  INTERFACE  with  COMFORT & BIG  BEADS !
SUPPORT  DECIMAL  POINT  &  NEGATIVE  NUMBERS !
21-COLUMN  ABACUS  CAN  SPEAK ! 

•    LANGUAGES:

         ENGLISH
         JAPANESE
         RUSSIAN
         CHINESE
         ARABIC
         GERMAN
         FRENCH
         SPANISH
         KOREAN
         NORWEGIAN
         FINNISH
         CANTONESE
         DANISH
         PORTUGUESE
         SWEDISH
         INDONESIAN
         TURKISH
         DUTCH
         VIETNAMESE

•   LET'S   USE  ABACUS  TO  CALCULATE   AND  HAVE  FUN !

     2+2+2+2+2+2+2+2+2+2 = 20
     30-3-3-3-3-3-3-3-3-3-3 = 0
     1+2+3+4+5+6+7+...+98+99+100 = 5050