? SELF-CHECKING - You can easily see the answers from the example being shown on the back of the card.
? EASY SORTING - As opposed to all square edges, this set has 3 rounded edges with 1 Square edge and hole-punched for easy sorting.
? 2 RINGS INCLUDED - This set of flash cards includes 2 rings to separate the examples that need practice from those that don't.
? LARGE CLEAR NUMBERS - These flash cards are the perfect hand-held size with large, clear and bold numbers so it easy to see even from the back of the classroom.
? TEACH AND REVIEW - It is ideal for teaching, reviewing and practicing math addition, in the classroom as a whole or each child individually or in groups, at their level.