Learn to calculate quickly and accurately with virtual coaches messages.
Follow your mental calc daily progress through graphs and simple indicators such as the number of correct calculations per minute.
Every day take part in mental calc competitions and compare your results to those of all the other players around the world.
The proposed challenges categories are:
- Multiplication tables,
- Dates & Time,
- Multiples & Divisors,
- Metric Conversions,
- Order of operations,
- PI digits.
Progress through the seven difficulty levels from "too easy" to "extreme".
Regularly new categories and new mental calc games will be added for free.