In this 69 page PDF document by Pam & Tara, you will find all 100 basic addition facts and their corresponding subtraction facts. All of the facts have been organized into categories so that they are easier for children to practice and commit to memory. The categories are:
2. Add & Subtract 1
3. Doubles Add & Subtract 1
4. Add & Subtract 2
5. Zero Facts
6. Making 10 (using 9)
7. Making 10 (using 8)
8. Doubles Add & Subtract 2
9. The last 12 Facts
The flash cards can be used at school or at home. Each category of facts has a graphic so children can keep them organized.
Pam and Tara use the flash cards on an interactive mental math bulletin board. With card titles and list of facts, they could also be put on separate rings and used that way.
This fits well with the common core standards related to fact memorization.