Mental Calculation

Don't think. FEEL!!!

This is japanese right brain training called Flash Anzan.

You add all numbers popping up one after another.

This mental arithmetic application will make you able to perform hundreds calculations a minute.

If you fall into a slump, you should remember following words.

Don't think. FEEL!(Bruce Lee)

Main function:

Speed range (4.0sec - 0.15sec)

Number of Digits (1 - 5)

Number of calculation times (5 - 100)

Including negative number or not

Fix number of digits or not

To save the percentage of questions answered correctly

To retry the previous question

To start again where you left off