MatheAss4

The practice app for square numbers consists of 3 levels. Each level increases in difficulty.
Level 1: the tasks come in order. Level 2: the tasks get mixed up.
Level 1 and 2 have no time limit.
Level 3: the tasks get mixed up, the numbers have two digits, time limit: 2 minutes.
Each level can also be selected individually via the menu.

Level 1 is over when 36 tasks have been solved correctly once.
Level 2 is over when 60 tasks have been solved correctly, incorrect ones are displayed again.
Level 3 is over when 30 tasks have all been solved correctly. Time limit: 2 minutes. The total time required for this is displayed.