| Activity | Key skill practiced | Grade(s) |
| Penny Baggies | Decompose numbers less than or equal to 10 | K |
| Cool Counting Trick | Represent addition and subtraction within 10 using drawings | K |
| Sums-of-Ten Go Fish | Demonstrate fluency for addition within 10 | K–2 |
| Add Mentally | Fluently add within 100 | 2–3 |
| Auto Addition | Perform 2- and 3-digit addition | 2–3 |
| Division Card Sort | Group and categorize representations of multiplication and division | 5–8 |
| Root-O! | Evaluate and estimate square roots | 8 |
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