Mental Arithmetic Trainer

Mental Arithmetic with speech recognition.
This app provides you arithmetik problems verbally and you have to answer verbally. The tasks are not displayed, so be a good listener! Just click on the button 'Next Arithmetik Problem ...'. According to your settings you will hear an arithmetik problem. Please wait until you're asked to speak. Then say the solution clearly.

Please note: If the app does not generate speech, please go to the settings of your device and install the voice data:
Settings->Voic input & output->Text-to-speech settings->Install voice data

By selecting "calculation method" you can choose one of the following five options:
Addition, Subtraction, Multiplikation, Division or
Random

Via the button "value range" you can enter the minimum and maximum values ​​for the tasks.

Speech recognition is possible without any problems up to numbers about 10000. In addition, the hits are low. So there are just arithmetic problems with results less than 10,000.