Content-rich math cards do their job, teaching students new skills in a fun way. This educational aid helps students build addition skills. Equations are presented two ways to reinforce skills. Complete tables feature all numbers from 0 to 12. Answers on the back allow self-checking. Students will delight in mastering new skills. No-see-through cards have quick-sorting, rounded corners. Details: All facts through 12 Sturdy flash cards come in a storage box Answers on the back allow self-checking For ages 6 and up