Smart math is a simple mathematical calculation game that can help sharpen your brain so that it has the ability to calculate quickly and memorize it by heart. Many people think that the most difficult subject since we know the subject in school is mathematics, and that is true, I am also one of the people who find mathematics difficult. The basic key to mastering mathematics is proficient in basic calculations involving numbers 1 to 9, be it addition, multiplication, division or subtraction.