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数学之美 app for iPhone and iPad


4.2 ( 912 ratings )
Lifestyle Games Racing Entertainment Educational Puzzle
Developer: Changjie Yan
0.99 USD
Current version: 1.1, last update: 6 years ago
First release : 06 Jul 2015
App size: 1.75 Mb

Often arithmetic has a strong effect on the intelligence of a person.;
Essential artifact for brain workers.
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Introduction:
1 timing arithmetic calculation, on one digit or number is calculated
2 time to answer each question
3 answer hints