Practice makes perfect. Mathematics requires just as many other skills that you practice. This will improve your skill. The app can be used as daily exercises or daily homework. For example, set the number of calculations to 10 and you will be notified when you are done. This can be increased up to 50.
"Subtraction" is not a game. Nor does it remind of a game because the reality for a child does not resemble game-like situations. The app is deliberately simplified and simple when you are doing the actual calculation. To keep the focus on your thinking. There is also no way to guess among alternatives which is often found in other similar apps. This way you have to actually figure out the answer yourself. Not guess among alternatives.
Parent or teacher can check the completed results afterwards. Results are displayed in a table on a different page. This is great for evaluation of the work done by the child. The evaluation of the result is important to child, parent and/or teacher.
The app Subtraction (this app) does not collect any information from the user. Neither does it communicate with any other service, inside the app or on the internet, for any purpose. The app Subtraction does not request, prompt, or have the capability to collect any personal information. No in-app purchases. No advertising.
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