by Kits for Life
Do you want to progress in mental arithmetic and improve your knowledge of additions, subtractions, multiplications, divisions?
To progress in mental arithmetic, you have to choose the fastest method, thanks to this book and to a regular and systematic training the calculations will become familiar to you.
It's a great workout with method advice, progressive exercises, problems, and answers. Suitable for kids during their free time and on vacations. Also suitable for adults to acquire new tricks.
Help your children to penetrate some secrets of mental arithmetic and to mentally solve operations much faster than you can imagine, so to rediscover mathematics in a funny way
(Fractions, square and power and more advanced tricks in VOL 2)
Get your kids's copy now