Grimm's Original Deck of Nature-Inspired 123 Number Cards - 32 Artistic Waldorf Watercolor Cards for Counting & Math Set includes 32 full-color printed cards, beautifully illustrated with gentle watercolor animals Useful for all ages (from toddlers up) to explore counting, equations, sequencing and even inventing your own games Cards included from 0 to 10, then counting by 10's up to 100 Also included are the operations symbols for addition, subtraction, equals, plus a colon for time or dividing For additional numbers, look for the Secondary Deck of Number Cards. Grimm's makes other toys that are excellent for exploring math, patterns and spatial awareness