 | 9.World Cup in 4 levels - a formal test. 4.Support training, test and comments on multiple solutions for one question by the setting of Difficulty Level; 5.Support standard rule (additional, subtraction, multiplication and division) as well as advanced rule (standard rule + power and root); 6.You can choose to use J (11), Q (12) K (13) as an option; 7.You can view complete list of all solutions for all possible 24 questions in a whole under different rules; 8.Training plan and training game with instructions and variety of options; |
