4-group Playing Cards™
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4-group Math Playing Cards are a unique deck of playing cards based on the 4-group Number Patterns. The cards show the 4-group Number Patterns 0-10. There are 44 cards in a deck. The suits are squares, circles, pluses, and hexagons. The four blank cards are the zeros. (Don’t throw them away!) The odd number cards are notched so they can combine to show the pattern for their sum, up to ten.
The 4-group Playing Cards can replace traditional playing cards for many math activities and games to support the 4-group Method.
Each playing card measures 3” high by 2” wide.