Basic Calculator

In this calculator children as well as adults can practice mental arithmetic.
All four base operations such as adding, subtracting, multiplying and dividing,
can be trained indefinitely, without time pressure. If the result is correct, it lights up green, if it is wrong, it turns red.

It is possible to choose between 6 languages, these are German, English, French, Italian, Spanish, and Portuguese.
You can also adjust the number of decimal places.

This app was developed by René Albert and Cristoph Suess.