Help people improve the ability of calculation:
Hear -> Exercise ->Practice->Go over ->Improve
1 Hear the repeat talking of basic formula from the formula manager. Follow the talking.
2 Exercise in the exercise center.
3 Practice with daily calculation.
4 Go over by hearing the talking from log manager.
5 Improve by practicing every day.
A detail calculator, a cartoon calculator, a calculation teacher
The detail style will display every steps of the calculation. The cartoon style will make children like to use it. Not only a calculator, but also a teacher.
-You talk, You hear, Your exercise, You improve
According to the help document, you could let this calculator talk in your own voice.

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