Negative bases with negative exponents

Multiply the base by itself as many times as the exponent says. A zero exponent gives 1, and a negative exponent means take the reciprocal.

1. Evaluate 5⁻². (Write a whole number or a fraction.)
2. Evaluate 7⁻². (Write a whole number or a fraction.)
3. Evaluate 7⁻⁴. (Write a whole number or a fraction.)
4. Evaluate (−7)⁻⁴. (Write a whole number or a fraction.)
5. Evaluate (−10)⁻². (Write a whole number or a fraction.)
6. Evaluate (−10)⁻¹. (Write a whole number or a fraction.)
7. Evaluate 4⁻¹. (Write a whole number or a fraction.)
8. Evaluate 5⁻⁴. (Write a whole number or a fraction.)
9. Evaluate 14⁻⁴. (Write a whole number or a fraction.)
10. Evaluate 11⁻². (Write a whole number or a fraction.)
11. Evaluate 10⁻³. (Write a whole number or a fraction.)
12. Evaluate (−2)⁻³. (Write a whole number or a fraction.)
13. Evaluate 20⁻⁴. (Write a whole number or a fraction.)
14. Evaluate (−18)⁻². (Write a whole number or a fraction.)
15. Evaluate (−14)⁻³. (Write a whole number or a fraction.)
16. Evaluate (−8)⁻⁴. (Write a whole number or a fraction.)
17. Evaluate (−24)⁻⁴. (Write a whole number or a fraction.)
18. Evaluate 17⁻¹. (Write a whole number or a fraction.)
19. Evaluate (−23)⁻⁴. (Write a whole number or a fraction.)
20. Evaluate (−6)⁻³. (Write a whole number or a fraction.)