What is "pyramath"

Pyramath is a card game that uses mathematical facts. In two player versions of the game, competitors try to complete a card based pyramid by reducing the number of available plays to a single play. Card faces range from 0 to 9, legal plays are between 2 cards when any arithmetic fact has the units digit of the card that is played. Instructions for multiple games played with Pyramath cards have been made available at a teachers web site at http://pyramath.pbworks.com/w/page/8581054/FrontPage

Pyramath is produced by I See Cards, LLC