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Evaluate powers with negative bases

Grade 8 math · Fieldbook Learning

Name ______________________ Date __________

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 (−9)². (Write a whole number or a fraction.)
  2. Evaluate (−9)⁴. (Write a whole number or a fraction.)
  3. Evaluate (−4)³. (Write a whole number or a fraction.)
  4. Evaluate (−8)³. (Write a whole number or a fraction.)
  5. Evaluate 4². (Write a whole number or a fraction.)
  6. Evaluate 4³. (Write a whole number or a fraction.)
  7. Evaluate 6⁵. (Write a whole number or a fraction.)
  8. Evaluate 7⁴. (Write a whole number or a fraction.)
  9. Evaluate 11². (Write a whole number or a fraction.)
  10. Evaluate 10⁴. (Write a whole number or a fraction.)
  11. Evaluate 5². (Write a whole number or a fraction.)
  12. Evaluate 2⁵. (Write a whole number or a fraction.)
  13. Evaluate (−6)⁵. (Write a whole number or a fraction.)
  14. Evaluate (−15)⁶. (Write a whole number or a fraction.)
  15. Evaluate 5³. (Write a whole number or a fraction.)
  16. Evaluate (−5)². (Write a whole number or a fraction.)
  17. Evaluate (−8)⁴. (Write a whole number or a fraction.)
  18. Evaluate 16⁴. (Write a whole number or a fraction.)
  19. Evaluate (−10)⁷. (Write a whole number or a fraction.)
  20. Evaluate 13⁷. (Write a whole number or a fraction.)
More free practice: fieldbooklearning.com/practice/grade-8/evaluate-powers-with-negative-bases/

Play it as a quiz game

16 of these questions as multiple choice, with near-miss wrong answers, ready for Kahoot or Blooket.

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  2. Click the matching button below, then click the first empty question row of the template and paste.
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Answer key: Evaluate powers with negative bases

  1. 81
  2. 6561
  3. -64
  4. -512
  5. 16
  6. 64
  7. 7776
  8. 2401
  9. 121
  10. 10000
  11. 25
  12. 32
  13. -7776
  14. 11390625
  15. 125
  16. 25
  17. 4096
  18. 65536
  19. -10000000
  20. 62748517