Easy to play (Straightforward gameplay) Addition, multiplication, subtraction, division. 1 Minute to do them all. What your highest score would be. clock is ticking. Would you be courageous enough to take this challenge. Ideally designed for children, this game will help them learn simple arithmetic not only to improve their grades in school but also to help them in their daily life. Adults are also in need to practice their calculation skills think about it, what is 8 times 7 without a calculator. Try it now, it is absolutely free.