Star Education Multiplication Flash Cards, 0-12 (All Facts-169 Cards) With 2 Rings 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 deal for teaching, reviewing and practicing math multiplication, in the classroom as a whole or each child individually or in groups, at their level.