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## MCQ Questions for Class 7 Mathematics Chapter wise with Answers

## Q1. The value of (−1)^{47} is

(i) -1

(ii) 1

(iii) 0

(iv) None of these

(i) -1

## Q2. The value of (-2)^{4 }is ………..

(i) -16

(ii) 16

(iii) 8

(iv) – 8

(ii) 16

## Q3. Simplify 2 × 10³.

(i) 1000

(ii) 2000

(iii) 16000

(iv) None of these

(ii) 2000

## Q4. The exponential form of 81 is

(i) 3^{4}

(ii) 3³

(iii) 3²

(iv) none of these

(i)

## Q5. Which one is greater?

(i) 2³

(ii) 3²

(iii) 4²

(iv) 5³

(iv) 5³

## Q6. Multiplicative inverse of 1/7 is

(i) 14

(ii) 7

(iii) 49

(iv) None of these

(ii) 7

## Q7. The value of 3° × 4° × 5° is ………..

(i) 60

(ii) 0

(iii) 1

(iv) 3

(iii) 1

## Q8. The short notation 10^{4} stands for the product.

(i) 10 × 10 × 10 × 10

(ii) 4 × 10

(iii) 10 + 10 + 10 + 10

(iv) None of these

(i) 10 × 10 × 10 × 10

## Q9. The exponential form of 32 is

(i) 2³

(ii) 2^{4}

(iii) 2^{5}

(iv) none of these

(iii)

## Q10. Express the following in exponential form.

a×a×a×c×c×d×d×d×d

(i) a³ × c² × d^{4}

(ii) d² × a³ × c

(iii) d² × a² × c

(iv) c³ × d^{4}

(i)

## Q11. The value of 7° is *__* .

*__*

(i) 7

(ii) 21

(iii) 1

(iv) None of these

(iii) 1

## Q12. 1.2 × 10^{10 }in the normal form is

(i) 120000000000

(ii) 12000000

(iii) 12000000

(iv) 12000 000 000

(iv) 12000 000 000

## Q13. The value of (−1)^{91} is

(i) 1

(ii) 0

(iii) -1

(iv) None of these

(iii) -1

## Q14. The exponential form of 625 is

(i) 5²

(ii) 5³

(iii) 5^{4}

(iv) 5^{5}

(iii)

## Q15. Simplify (-2)³ × (-10)²

(i) 800

(ii) -800

(iii) -400

(iv) -500

(ii) -800

## Q16. 512 can be written in exponential form as

(i) 2³

(ii) 2^{4}

(iii) 2^{9}

(iv) 2

(iii)

## Q17. Express using exponential notation 343.

(i) 3^{7}

(ii) 7³

(iii) 7

(iv) None of these

(ii) 7³

## Q18. The value of (- 2)³ is

(i) 8

(ii) -8

(iii) 16

(iv) -16

(ii) -8

## Q19. Express 729 as a power of 3.

(i) 9³

(ii) 3^{4}

(iii) 3^{6}

(iv) 3²

(iii)

## Q20. In 10^{4}, 10 is called :

(i) Base

(ii) Power

(iii) Exponent

(iv) None of these

(i) Base

## Q21. What is the base in 8²?

(i) 8

(ii) 2

(iii) 6

(iv) 10

(i) 8

## Q22. Express each of the following as a product of powers of their prime factors: 120

(i) 5² × 3²

(ii) 2² × 3³

(iii) 3 × 5 × 2³

(iv) 3 × 5² × 2

(iii) 3 × 5 × 2³

## Q23. Multiplicative inverse of 1/5 is

(i) 10

(ii) 3

(iii) 5

(iv) None of these

(iii) 5

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