God Of Calculation

Because it is 16 columns of calculations, anyway, precision is necessary.
Because answer time is considered, the speed is necessary for score.
I recommend the person who want to up skill of calculation to play this application.

There is the following characteristic for this application.

■ Compete for the precision of the calculation, speed
■ Cope with world ranking
■ Can play addition and subtraction
■ The number of problems is five