If you get a question wrong, you have to restart the game. When you finish a level, you don't have to restart the game, it continues automatically. When counting numbers with a comma, only two places after the comma are needed, for example: 2.1 + 2.22 = 4.32 counted as a hit 2.1 + 2.22 = 4.320 counted as an error 45.6 - 23.4 = 22.20 counted as a hit 45.6 - 23.4 = 22.2 counted as an error
it's not entirely in english