1. Write the prime factorization of 1500. A. 22 × 3 × 52 B. 2 × 3 × 5 C. 22 × 3 × 52 × 102 D. 22 × 3 × 53 Hint 2. Based on the factor trees, what is the greatest common factor of 8 and 20? A. 4 B. 20 C. 2 D. 8 Hint 3. Write a percent to represent the shaded area. A. 100% B. 64% C. 16% D. 4% Hint 4. In a survey, 75 out of 100 eighth graders said they bought lunch at school. What percent is this? A. 75% B. 25% C. 0.75% D. 100% Hint 5. Find the least common multiple of 3, 4, and 5. A. 30 B. 60 C. 12 D. 120 Hint 6. Express in simplest form. A. B. C. D. Hint 7. Write as a decimal. A. 0.805 B. 8.5 C. 0.085 D. 0.85 Hint 8. Express as a decimal. A. 0.125 B. 0.8 C. 1.25 D. 0.0125 Hint 9. Express as a decimal. A. 5.4444… B. 0.54444… C. 7.25 D. 54.4444… Hint 10. What is the greatest common factor of 20x2 and 32x3? A. 4x B. 8x C. 4x2 D. 8x3 Hint 11. Which fraction is when written in simplest form? A. B. C. D. Hint 12. Find the least common multiple of 12 and 8. A. 48 B. 96 C. 24 D. 12 Hint 13. Express % as a decimal. A. 7.2625 B. 72.625 C. 0.072625 D. 0.72625 Hint 14. Factor 18ab2. A. 22 · 3 · a · b · b B. 2 · 3 · a · b · b C. 2 · 3 · 3 · a · b · b D. 2 · 3 · 3 · a · b Hint 15. Which sentence is not true? A. B. 0.3 < 34% C. > 42% D. > 0.85 Hint 16. Which set of rational numbers is ordered from least to greatest? A. , 0.6, 73%, B. 0.6, , , 73% C. 0.6, , 73%, D. , 73%, , 0.6 Hint