Mental arithmetic training application.
If you win 10 games in a row, you will go to the next level.
level1 : 70÷1, 96÷1, ....
level2 : 136÷2, 158÷2, ...
level3 : 159÷3, 255÷3, ....
level4 : 188÷4, 276÷4, ...
level5 : 215÷5, 405÷5, ...
level6 : 372÷6, 438÷6, ....
level7 : 287÷7, 455÷7, ...
level8 : 528÷8, 688÷8, ...
level9 : 432÷9, 666÷9, ...
level10 : Practice
In Japan, 8-9 years old (3rd grade)