This app included all four basic arithmetic operations on different difficulty levels. You can write the computation on a virtual blackboard.
As a special tricky question a numerical grid of numbers to 100 is included.
Only in Pro-Version you can find some tasks for identify some quantites in several levels.
In the option-screen you can set different things, as volume of confirmation tone, numbers of tasks, pen size and so on.
The permission for Internet access is only for the "about me" page. It is required to view my existing apps store in Google Play. From the application no data are collected and / or transmitted.
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