Each of the 21 picture cards ?hand signs/fingers,? ?quantities,? and ?numbers/numerals? allows for different variations of counting and arithmetic games. So that it?s really easy to count to 20 and do arithmetic! Contents: 63 cards | Material: Cardboard | Dimensions: 18 x 13 cm Encourages: Math Skills | Cognitive Skills | Trains Dexterity Not suitable for children under 3 years | Game for 1-4 Player Numeracy and mathematical cognition help develop a sound logical foundation. Understanding numbers and quantities enable a child to develop basis for logical and critical thinking. Also matching numbers with the associated numerals and putting them in an order helps a child create a firm understanding of inductive and deductive thinking. The child also develops reasoning abilities, logic, as well as the use of numbers and abstract pattern recognition skills.