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| Numbers | Algebra | Geometry | Data | Measure | Puzzles | Games | Dictionary | Worksheets |
|
| Worksheet | Number Range | Online |
|---|---|---|
| Primer | 1 to 4 |  |
| Primer Plus | 2 to 6 | |
| Up To Ten | 2 to 10 | |
| Getting Tougher | 2 to 12 | |
| Intermediate | 3 to 15 | |
| Advanced | 6 to 20 | |
| Hard | 8 to 30 | |
| Super Hard | 12 to 100 | |