This game is a training practice or test the addition that more difficult than adding the basic number. In the game you can choose 2 levels, there is a positive number, 2 or 3 position, which is suitable for children of different levels.
This game is a training practice or test the addition that more difficult than adding the basic number. In the game you can choose 2 levels, there is a positive number, 2 or 3 position, which is suitable for children of different levels.