[ There are 3 modes ] - Looking Mode Answer by looking at questions carefully.
- Listening Mode Answer by listening to questions.
- Flashing Mode Answer by gazing at flash questions.
[ Functions ] - Support four operations. (Plus/Minus/Multiplication/Division) - You can adjust settings such as digit and so on. - You can change the speed for listening and flashing. - Show today's score and total score on main screen. - Show history of you answered questions before.
The app can be used for abacus training. Will be calc master by challenging questions that are suitable for you!