MCQ Questions for Class 8 Maths Chapter 12 Exponents and Powers with Answers

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1. am ÷ an is equal to

(A) am-n(B) am+n(C) amn(D) an-m 

Question 1 of 25

2. (am)n is equal to

(A) am+n(B) am-n(C) amn(D) an-m

Question 2 of 25

3. am × bm is equal to

(A) (ab)m(B) (ab)-m(C) am b
(D) abm

Question 3 of 25

4. am x am is equal to

(A) am+n(B) am-n(C) amn(D) an-m

Question 4 of 25

5. a0 is equal to

Question 5 of 25

6. 2 × 2 × 2 × 2 × 2 is equal to
(A) 24(B) 2³
(C) 2²
(D) 25

Question 6 of 25

7. In 10², the exponent is

Question 7 of 25

8. In 10² the base is

Question 8 of 25

9. The multiplicative inverse of 2-3 is

Question 9 of 25

10. The multiplicative inverse of 105 is

(A) 5
(B) 10
(C) 10-5(D) 105.

Question 10 of 25

11. The multiplicative inverse of 122 is 22

(A) 25(B) 2²
(C) 2
(D) 1.

Question 11 of 25

12. The multiplicative inverse of 1010 is
(A) 10
(B) 1/10(C) 10-10(D) 1010.

Question 12 of 25

13. The multiplicative inverse of am is

(A) a
(B) m
(C) am(D) a-m

Question 13 of 25

14. 5³ × 5-1 is equal to

(A) 5
(B) 5³
(C) 5-1(D) 5²

Question 14 of 25

15. (- 2)-5 x (-2)6 is equal to

Question 15 of 25

16. 3² × 3-4 × 35 is equal to

(A) 3
(B) 3²
(C) 3³
(D) 35

Question 16 of 25

17. (1/2)-4 is equal to

(A) 2
(B) 2-4(C) 1

Question 17 of 25

18. (2° + 4-1) × 2² is equal to

Question 18 of 25

19. (2-1 + 3-1 + 5-1)0 is equal to

Question 19 of 25

20. 3m + 3-3 = 35 ⇒ m is equal to

Question 20 of 25

21. (-2)m+1 × (-2)4 = (-2)6 ⇒ m =

Question 21 of 25

22. (-1)50 is equal to

Question 22 of 25

23. (-1)51 is equal to

Question 23 of 25

24. 149600000000 is equal to

(A) 1.496 × 1011(B) 1.496 × 1010(C) 1.496 × 1012(D) 1.496 × 108

Question 24 of 25

25. 300000000 is equal to

(A) 3 × 108(B) 3 × 107(C) 3 × 106(D) 3 × 109

Question 25 of 25

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Comments

  1. Satyam yadav says:
    September 1, 2023 at 8:44 am

    Exponent an power

    Reply

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