Participate in the sums contest. Getthefastest time and compete with your friends on Facebook, Twitterandother social networks to see who is the fastest in the artofadding.

Have 3 difficulty levels and each level will be moredifficultoperations.

Join the fun game of adding and exercise your mind.

Ideal also for people who for various reasons have toexerciseyour mind. Do not let your brain atrophy and put themup.