Development background

 Multiplication by multiplication is the most important part of the four basic arithmetic operations, and it can be said to be one of the core competencies for living in modern society.
 「Master99」 is designed to encrease your multiplication ability and extend the range of fast basic operations to 19 levels.

Key features

- Time attack challenge with 2~19 tables

- Square numbers challenge

- Ratio calculation challenge

- Quarterly world record ranking provided

- Systematic level system with various achievements

Main target

- Children learning multiplication table for the first time

- Those who want to quickly improve their multiplication and mental arithmetic skills at work