Smarthematics

Play with numbers and challenge the timer in this mental arithmetic game! Designed to make mathematics fun, accessible and engaging, Smarthematics develops your reflexes while keeping you entertained. Addition, subtraction, multiplication... Equations follow one another at breakneck speed, but one number is missing every time. It's up to you to find it before time runs out. - Keep answering correctly and boost your score.
 - Increase your concentration and boost your mental performance, naturally. - Few minutes are all it takes to give your brain a pleasant and effective workout. - Suited to all ages: children, teens or adults keen to keep their minds sharp. - Whether you're looking for a smart break, a learning tool or a challenge between friends, Smarthematics is made for you!