classic level 4
A serie or sequence of 17 balls to reposition. Level 4. This is a free game. At each party, the position of ballson the abacus is random, you can replay endlessly with, each new part, completely different games.
Reposition the balls on the abacus after a few seconds for memorization
This game is a great game to train the visual memory of adults. An excellent game for adults memory training