Geo Location Information for 218.253.209.25 IP Address. The IP Address 218.253.209.25 is located at 22.2855 latitude and 114.158 longitude in Hong Kong SAR China. Friendly Location for the IP Address is Hong Kong, Hong Kong, Hong Kong
珠心算Abacus Math是以珠算方式進行的心算,過程先以算盤學習計數並著重教授心算技巧,本會定期舉辦珠心算考試及珠心算比賽以提升學童數學速算的能力。