Do you want to improve your ability to perform mental additions? The same way in physical fitness you have to do push-ups, pull-ups or go to the gym to get results, you can teach your brain to be skilled at mental math. Sumeduca is a fun and effective way to keep one's mind active while practising simple additions. This e-book contains forty different puzzles of medium difficulty.
Do you want to improve your ability to perform mental additions? The same way in physical fitness you have to do push-ups, pull-ups or go to the gym to get results, you can teach your brain to be skilled at mental math. Sumeduca is a fun and effective way to keep one's mind active while practising simple additions. This e-book contains forty different puzzles of medium difficulty.