口算达人-提高口算能力 app for iPhone and iPad
Basic and mixed arithmetic operations.
- Addition, subtraction, multiplication, division, with any numbers within 1000.
- Various mixed calculations for different grades.
- Fraction and decimal operations.
- Recommend specific types of practice as per history records.
- Print and practice the quiz.
- Correct mistakes.
- Use a scratchpad to calculate.
Thanks to my son. He helps to improve the app continuously with creative ideas.