This is a set of calling cards and bingo game cards to develop recognition and understanding of the numbers 0-20. This game includes a set of 5 game boards and 1 blank game board for customization, and ten frame calling cards for each number 0-20. A wonderful activity for a math center or whole-class math activity, which lays the foundation for place value, builds numeral recognition, and provides opportunites for composing and decomposing numbers. Also a great activity for building subitizing skills. For grades K-2.