With this App you can train with or without Soroban! In this app you: - Possibility to add multiple number from 1 digits until 16 - Change repetitions from 2 until 10 - Select different speeds To make it clear, lets suppose that you have 3 digits and 5 repetitions, it will show 432 + 534 + 654 + 865 + 345, it will show them one by one, then it will show the result! For now you have 2 languages Italian and English. At this moment the application allows only to add multiple random numbers and then show the result but if requested I could add other operations.