You can study "multiplication", "subtraction", "multiplication", and "division" easily in your spare time.
This is a "brain training" calculation app recommended for all ages, from small children who have just entered elementary school to elderly people who want to train their brains in a casual manner. All functions are available for free.
You can train your calculation skills in your spare time and train your brain as well.
Let's have fun playing it every day and train your "calculation ability" and "brain power" more and more.


★Recommended for the following people★
☆People who want to become good at calculation with a sense of game.
☆People who want to study efficiently in their spare time.
☆People who want to train their brain easily.
☆People who want to train their brain effectively in their spare time.


★ADDITION
"1 digit + 1 digit" problems will be presented.

★SUBTRACTION
Questions will be given on numbers up to "20".

★MULTIPLICATION
Problems up to "9 x 9" will be presented.

★DIVISION
Questions will be given on numbers up to "50".

★EXTRA
"Addition, subtraction, multiplication, and division are randomly selected.