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Important Questions: Exponents and Powers - Class 7 MCQ


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20 Questions MCQ Test Mathematics (Maths) Class 7 - Important Questions: Exponents and Powers

Important Questions: Exponents and Powers for Class 7 2024 is part of Mathematics (Maths) Class 7 preparation. The Important Questions: Exponents and Powers questions and answers have been prepared according to the Class 7 exam syllabus.The Important Questions: Exponents and Powers MCQs are made for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Important Questions: Exponents and Powers below.
Solutions of Important Questions: Exponents and Powers questions in English are available as part of our Mathematics (Maths) Class 7 for Class 7 & Important Questions: Exponents and Powers solutions in Hindi for Mathematics (Maths) Class 7 course. Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free. Attempt Important Questions: Exponents and Powers | 20 questions in 30 minutes | Mock test for Class 7 preparation | Free important questions MCQ to study Mathematics (Maths) Class 7 for Class 7 Exam | Download free PDF with solutions
Important Questions: Exponents and Powers - Question 1

(-2a)3 =

Detailed Solution for Important Questions: Exponents and Powers - Question 1

(-2a)3 = (-2a) × (-2a) × (-2a) = -8a3

Important Questions: Exponents and Powers - Question 2

(22 × 2)2 =

Detailed Solution for Important Questions: Exponents and Powers - Question 2

(22 × 2)2 = (22+1)2 = (23)2 = 23×2 = 26

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Important Questions: Exponents and Powers - Question 3

Which of the following is true?

Detailed Solution for Important Questions: Exponents and Powers - Question 3

20 = (100)0 = 1

Important Questions: Exponents and Powers - Question 4

30 + 40 + 50 =

Detailed Solution for Important Questions: Exponents and Powers - Question 4

30 + 40 + 50 = 1 + 1 + 1 = 3

Important Questions: Exponents and Powers - Question 5

(20 + 30) × 40 =

Detailed Solution for Important Questions: Exponents and Powers - Question 5

(20 + 30) × 40 = (1 + 1) × 1 = 2

Important Questions: Exponents and Powers - Question 6

30 × 40 × 50 =

Detailed Solution for Important Questions: Exponents and Powers - Question 6

30 × 40 × 50 = 1 × 1 × 1 = 1

Important Questions: Exponents and Powers - Question 7

(52)10 =

Detailed Solution for Important Questions: Exponents and Powers - Question 7

(52)10 = 52×10 = 520

Important Questions: Exponents and Powers - Question 8

(-5)4 =

Detailed Solution for Important Questions: Exponents and Powers - Question 8

(-5)4 = (-5) × (-5) × (-5) × (-5) = 625

Important Questions: Exponents and Powers - Question 9

106 ÷ 105 =

Detailed Solution for Important Questions: Exponents and Powers - Question 9

106 ÷ 105 = 106-5 = 101

Important Questions: Exponents and Powers - Question 10

If (- 3)4 × (-3)6 = (-3)?, then ? =

Detailed Solution for Important Questions: Exponents and Powers - Question 10

(-3)4 × (-3)6 = (-3)4+6 = (-3)10

Important Questions: Exponents and Powers - Question 11

If 23 × 24 = 2?, then ? =

Detailed Solution for Important Questions: Exponents and Powers - Question 11

23 × 24 = 23+4 = 27

Important Questions: Exponents and Powers - Question 12

The value of (- 2)4 is

Detailed Solution for Important Questions: Exponents and Powers - Question 12

(-2)4 = (-2) × (-2) × (-2) × (-2) = 16

Important Questions: Exponents and Powers - Question 13

The value of (9)0 is

Detailed Solution for Important Questions: Exponents and Powers - Question 13

The value of (9)0 is 1. Any number raise to power 0 is always 1.

Important Questions: Exponents and Powers - Question 14

The exponential form of 1000 is

Detailed Solution for Important Questions: Exponents and Powers - Question 14

1000 = 10 × 10 × 10 = 103

Important Questions: Exponents and Powers - Question 15

The exponential form of 625 is

Detailed Solution for Important Questions: Exponents and Powers - Question 15

625 = 5 × 5 × 5 × 5 = 54

Important Questions: Exponents and Powers - Question 16

The exponential form of 64 is

Detailed Solution for Important Questions: Exponents and Powers - Question 16

64 = 2 × 2 × 2 × 2 × 2 × 2 = 26

Important Questions: Exponents and Powers - Question 17

The exponential form of 243 is

Detailed Solution for Important Questions: Exponents and Powers - Question 17

243 = 3 × 3 × 3 × 3 × 3 = 35

Important Questions: Exponents and Powers - Question 18

The exponential form of 32 is

Detailed Solution for Important Questions: Exponents and Powers - Question 18

32 = 2 × 2 × 2 × 2 × 2 = 25

Important Questions: Exponents and Powers - Question 19

The exponential form of 125 is

Detailed Solution for Important Questions: Exponents and Powers - Question 19

125 = 5 × 5 × 5 = 53

Important Questions: Exponents and Powers - Question 20

The exponential form of 81 is

Detailed Solution for Important Questions: Exponents and Powers - Question 20

81 = 3 × 3 × 3 × 3 = 34

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