Numbio: Mental arithmetic

Store description excerpt

Simply practise mental arithmetic - without advertising and in-app purchases - for less than the price of a cup of coffee. The app is suitable for children, teenagers and adults who want to get faster at mental arithmetic. We have taken care to make it as easy to use as possible. This means that the app can also be installed on a children's tablet without hesitation. Setting options: - Mathematical operators in simple language (plus, minus, times, divided) - Negative results allowed yes/no - Number range (1-50) - Time limit, for example to practise for 5 minutes - Number of tasks limit, for example to practise exactly 50 tasks After the training session, the system displays how many tasks were completed, how long it took and the average time per task. It also shows how many tasks were completed in under 3 seconds, between 3 and 6 seconds, between 6 and 9 seconds and over 9 seconds. The app has been optimized for smartphones and tablets Numbio supports the system dark mode and several languages - German, - English, - French, - Dutch - Spanish and - Portuguese - Chinese - Russian - Armenian

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