Cashier Abacus
Soviet legendary wooden abacus. You can feel yourself the cashier in soviet 1976 shop and click-cluck wooden items.
Also you could check you skills - add in order prices of 5 goods as quick as possible.
All results are archived on site iphone.bashni.org and you can be number 1 in cashier world.
So, best users do it faster then 15 sec!