"Abacus Mental Calculation - Level Certification for Mental Calculation and Flash Azan, Speed Calculation Training Tool" is a professional application designed strictly in accordance with the "World Abacus Mental Calculation Federation Abacus Mental Calculation Level Certification Standards." It features professional levels, rich content, simplicity, ease of use, and an educational and entertaining approach. It is an essential training and examination tool for mathematics and mental calculation enthusiasts, as well as lightning calculation enthusiasts.

The application consists of two main modes: Challenge Mode and Custom Mode.

- Challenge Mode
The Challenge Mode consists of 10 levels and 200 small stages, corresponding to the proficiency and ability certification standards from Abacus Mental Calculation Level 10 to Level 1. The difficulty of each small stage progresses gradually, and the examination stages for each level fully align with the "Abacus Mental Calculation Certification Standards" examination specifications. This allows candidates and speed calculation enthusiasts to undergo comprehensive training in abacus mental calculation and assess their own mental calculation skills. Level 5 in abacus mental calculation corresponds to the corresponding level of the Computerized Accounting Certificate in the Certified Public Accountant examination, providing relevant individuals ample practice opportunities.

- Level Certification
In the abacus mental calculation examination and certification standards, Levels 8 to 10 only include addition and subtraction, while Levels 1 to 7 also include multiplication and division. The examination stages in this application, including their settings, difficulty, time limits, number of questions, and question types, fully comply with the standards of the respective examinations. If students can successfully pass the corresponding level examination in this application, they can be considered to possess the same level of abacus mental calculation skills and can confidently participate in the level certification examination.

- Custom Mode
The Custom Mode includes two functions: Lightning Calculation and Abacus Mental Calculation. In Lightning Calculation, users can choose calculation methods, number ranges, number of calculations, and time intervals in a mental calculation format. In Abacus Mental Calculation, users can customize calculation methods, number of questions, and time for solving the questions. Through extensive and repetitive training, users can improve their mathematical and mental calculation skills.

Our Abacus Mental Calculation and Flash Anzan Calculation application features a clean and concise interface, natural and friendly interactions, and a user-friendly experience. It can quickly help enthusiasts improve their abacus mental calculation scores and mathematical calculation skills. It is suitable for primary, middle, and high school students, various abacus calculation, speed calculation, and mental calculation enthusiasts, as well as individuals preparing for abacus mental calculation level certification and computerized accounting examinations.

Developing a professional abacus mental calculation and lightning calculation application has always been our goal. We sincerely hope that this application can enhance your mental calculation ability, cognitive capacity, and mathematical proficiency, and assist you in successfully passing the level certification examination!