Fausto Presutti 
Playing with Math 3 
Additive and Numerical Calculus with Tens

PLAYING WITH MATH it’s an educational path of math created by Fausto Presutti. Its efficacy has been proved by hundreds teachers in primary and secondary school. The educational path is composed by 19 books with different didactic path of mathematic, full of game-exercise that allow children to develop psycho-cognitive abilities and mathematic knowledge.
Playing with Math 3 – ADDITIVE AND NUMERICAL CALCULUS WITH TENS is based on 47 game-exercise cards. The formative path of this book is structured with these conceptual areas: Pp.3-5 Introduction to the concept of couple, couple, double and half Pp.6-12 Grouping in various bases with tables 2 post Pp.13-19 Group in base 10 and numerical acquisition up to 19 Pp. 20-24 Acquisition of numerical order up to 19, adding or removing 1by numerical chains Pp.25-29 Quantitative comparison with major / minor / equal within 19 Pp.30-33 Cyclic addition and subtraction within 19 Pp.34-42 Addition and subtraction with two operators within 19 Pp.43-47 Test problems The Series' theoretical model and formative path are visible on this website: http://didactics.ispef.eu/psychodidactic.htm