I learn to calculate

With an INNOVATIVE DESIGN OF THE PLASTIC TOKENS THAT FIT BETWEEN YES and that have whole numbers, fractions and signs printed on them arithmetic, LADO has developed a method for performing exercises of mental calculation. This method allows interest and attention to be maintained, while perform basic arithmetic operations. Provides a nice way to consolidate the working mechanisms of the calculation. CONTENT: 108 cards: 60 whole numbers, 12 broken numbers (1/2,1/4, 3/4 and 4/4), 36 arithmetic signs (+,-,x,:,>,<) and 13 symbolic drawings of fractions.