These concepts are totally new to the kids at this level. So they are taught using pictures, sticks, fingers and numberline to make them comfortable from all angles. Also kids can be taught the faster method of adding and subtracting two numbers. Kids will get to play games after they do activities to keep them engaged. This app provides an easy to use interface with flexibility to create multiple profiles. Detailed Progress Reports are provided with details of each and every question missed. Scratchpad is also given in Addition and Subtraction to do the problems on screen only.