Indian Abacus free Onlone self learning

What & Why - “Image Flash” is the activity which is done to give larger scope for the students to read the Abacus slider images representing values using which the students could have extended practice and also better assessment of their skills in reading the values of images at a speed, enhance their Visio-spatial memory skills, necessary to perform better in doing faster and accurate mental arithmetic skills by image of Abacus. Speed and accuracy in performing Mental Arithmetic by image of Abacus indirectly reflect their concentration & memory skills.