| Chapter | Practice problems | Key |
| Chapter 1 | Even numbered problems | Key |
| Chapter 2 | 2, 10, 12, 14, 18, 20, 24, 26, 28, 30, 36, 38, 46, 52, 58 | Key |
| Chapter 3 | Even numbered problems 2-52, 62, 64 | Key |
| Chapter 4 | 4, 12, 14, 16, 20, 22, 32, 34, 40, 48, 54 | Key |
| Chapter 5 | 2, 4, 8, 14, 16, 20, 24, 30, 38, 40, 46, 56, 58 | Key |
| Chapter 6 | 4, 6, 10, 12, 22, 26, 30, 36, 38, 44, 46, 50 | Key |
| Chapter 7 | 2, 6, 10, 16, 22, 24, 28, 32, 40, 52, 60, 62, 84 | Key |
| Chapter 8 | 4, 6, 8, 12, 14, 22, 24, 28, 30, 32, 36, 40, 42, 44, 52, 56, 58 | Key |
| Chapter 9 | 2, 8, 12, 20, 28, 36 | Key |
Designed and developed by Kevin Joseph Ruble in September 2008.