League Simulator Japanese Soroban Test Multi-Operation Multiplication Addition Square Roots Division Flash Anzan Calendar Dates Nth Roots Mod Prime Factorization Sum of Squares Exponents System of Equations Surprise The simulators above are still “in development.” If you encounter any issues or glitches when using the simulator, or if you have any suggestions to improve their operation, please e-mail GMCA at contact@mentalcalculation.org.
