【實用教育app】Classic Abacus HD|最夯免費app-綠色工廠好玩App

Abacus is the first elementary adaptation for calculations that you can use now on your iPad!Like a real school abacus this app will not only help your child learn counting faster than usual but also to take more pleasure from it. The simple mechanical device for arithmetic calculations an abacus represents a frame with the bones strung on spokes, usually on 10 pieces.In the XXth century people often used abacus in shops, in accountancy, for arithmetic calculations. Then during the progress they were replaced with electronic calculators that we use till nowadays.An easy and entertaining app with full multi-touch interface is great for children and adults alike. Count, calculate and enjoy this simple and good designed abacus.****************************************Features:# Classic design!# Real sound effects!# Great animation!