Motivation: One might ask why I built this app. The idea came after building a really amazing and useful app that helps my daughter to learn the multiplication tables [which is still in the development phase, some refinements are still needed on it]. Since this app is very similar to the Multiplication tables app, I decided to build it following the same concept. The Addition Table app is aimed to help children to learn and/or to improve their addition table skills. The base principle that stay