This app was created because learning to calculate in the area of addition and subtraction over the tens is a special hurdle for first and second graders and also for older, numerically weak children and often requires a lot of practice. Therefore, the focus of this app is to create worksheets that make this difficulty a little easier and train you to do exactly these types of tasks. You can also increase the difficulty and number of tasks individually and in small steps and combine different types of tasks.The range of numbers can be selected for addition and subtraction tasks; optionally with or without tens transition. For tasks with a tens transition, an aid appears that makes it easier to calculate over the tens. For this purpose, the child should e.g. In the exercise 8 + 5, first divide the second addend so that the first addand results in 10 and then add the remainder of the second addend. This means that the child should write: 8 + 2 + 3. In the case of task 45 - 8, the child should first calculate to the next ten and write accordingly: 45 - 5 - 3.Notated this way, these tasks are now easier to calculate and can also be mastered for children with arithmetic weaknesses and dyscalculia.With just a few clicks, you can generate math worksheets for children who are learning to calculate in the number range up to 100. For a worksheet you can choose from all four basic arithmetic operations at different levels of difficulty. Individual series of numbers can be selected for division and multiplication problems.All task types can be freely combined and are generated randomly each time according to the setting.The worksheets can be conveniently printed directly from the app. The only requirement for this is a printer that is compatible with your smartphone. (Depending on the printer, a plug-in app from the printer manufacturer can be used for this, e.g.https://play.google.com/store/apps/details?id=com.hp.android.printservice&hl=de (HP), https://play.google.com/store/apps/details?id=com .epson.mobilephone.android.epsonprintserviceplugin & hl = de (Epson), https://play.google.com/store/apps/details?id=jp.co.canon.android.printservice.plugin&hl=de (Canon), https : //play.google.com/store/apps/details? id = com.brother.printservice & hl = de (Brother)). Alternatively, the worksheets can also be saved as a PDF document.