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

## MCQ | Exponents and Powers Class 8

Check the below NCERT MCQ Questions for Class 8 Maths Chapter 12 Exponents and Powers with Answers Pdf free download. MCQ Questions for Class 8 Maths with Answers were prepared based on the latest exam pattern. We have Provided Exponents and Powers Class 8 Maths MCQs Questions with Answers to help students understand the concept very well.

### Objective Question | NCERT Maths Class 8

Book: National Council of Educational Research and Training (NCERT) Central Board of Secondary Education (CBSE) 8th Maths 12 Part-3 Exponents and Powers English

#### Ncert Solutions for Class 8 Maths | Objective Type Questions

You can refer to NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.
##### Exponents and Powers | Class 8 Maths | NCERT Solutions
 Q1. CBSE Class 8 Maths Mcq Questions The value of 2-2 is: A. 4 B. ¼ C. 2 D. ½
Ans: ¼
Hint:
2-2 = 1/22 = ¼
 Q2. CBSE Class 8 Maths Exponents and Powers Mcq Questions The multiplicative inverse of 7-2 is: A. 72 B. 7 C. 1/72 D. 1/7
Ans: 72
Hint:
The multiplicative inverse of any value is the one which when multiplied by the original value gives a value equal to 1.
7-2 = 1/72
Hence, 72 x 1/72 = 1
 Q3. Class 8 Maths Mcq Chapter 12 22 x 23 x 24 is equal to: A. 224 B. 2-5 C. 29 D. 2-9
Ans: 29
Hint:
By laws of exponents:
am x an = am+n
22 x 23 x 24 = 22+3+4 = 29
 Q4. Class 8 Maths Mcq online test 3-2 x 3-5 is equal to: A. 3-7 B. 3-3 C. 3-10 D. 37
Ans: 3-7
Hint:
3-2 x 3-5 = (1/32) x (1/35)
= (1/32+5)
= (1/37)
= 3-7
 Q5. Class 8 Maths Mcq with answers 54/52 is equal to: A. 56 B. 5-6 C. 5-2 D. 52
Ans: 52
Hint:
By exponent law:
am/an = am-n
54/52 = 54-2 = 52
 Q6. Learn Cbse Class 8 Maths Mcq The value of (34)3 is: A. 3 B. 312 C. 37 D. None of the above
Ans: 312
Hint:
By law of exponent:
(am)n = amn
(34)3 = 34×3 = 312
 Q7. Mcq Class 8 Maths Chapter 12 32 x 42 is equal to: A. 121 B. 49 C. 144 D. 156
Ans: 144
Hint:
By exponent law;
am x bm = (ab)m
32 x 42 = (3×4)2 = 122 = 144
 Q8. Mcq for Class 8 Maths Chapter 12 57/67 will give the value: A. (5/6)7 B. (5/6)0 C. (5/6)-7 D. (6/5)-7
Ans: (5/6)7
Hint:
By exponent law:
am/bm = (a/b)m
57/67 = (⅚)7
 Q9. Mcq Questions for Class 8 Maths with answers pdf Chapter 12 1000+200+50 is equal to A. 125 B. 25 C. 1/125 D. 3
Ans: 3
Hint:
By exponent law we know:
a0 = 1
1000 + 200 + 50 = 1 + 1 + 1 = 3
 Q10. Mcq Questions for Class 8 Maths with answers pdf download If (–3)m+1 × (-3)5 = (-3)7, then the value of m is: A. 5 B. 7 C. 1 D. 3
Ans: 1
Explanation: (-3)m+1 × (-3)5 = (-3)7
(-3)m+1+5 = (-3)7
(-3)m+6 = (-3)7
Since, base are equal on both the sides, hence if we compare the powers,
m + 6 = 7
m = 7 – 6 = 1

# NCERT Solutions | MCQ Class 8 Maths

## CBSE MCQ Questions with Answers Class 8 Maths

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