NCERT Solutions Class 7 Maths Chapter 13 Exponents and Powers – Here are all the NCERT solutions for Class 7 Maths Chapter 13. This solution contains questions, answers, images, explanations of the complete chapter 13 titled Exponents and Powers of Maths taught in class 7. If you are a student of class 7 who is using NCERT Textbook to study Maths, then you must come across chapter 13 Exponents and Powers. After you have studied lesson, you must be looking for answers of its questions. Here you can get complete NCERT Solutions for Class 7 Maths Chapter 13 Exponents and Powers in one place.
NCERT Solutions Class 7 Maths Chapter 13 Exponents and Powers
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For a better understanding of this chapter, you should also see summary of Chapter 13 Exponents and Powers , Maths, Class 7.
Class | 7 |
Subject | Maths |
Book | Mathematics |
Chapter Number | 13 |
Chapter Name |
Exponents and Powers |
NCERT Solutions Class 7 Maths chapter 13 Exponents and Powers
Class 7, Maths chapter 13, Exponents and Powers solutions are given below in PDF format. You can view them online or download PDF file for future use.
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Question & Answer
Q.1: Find five more such examples, where a number is expressed in exponential form. Also identify the base and the exponent in each case.
Ans : Missing
Q.2: Express: (i) 729 as a power of 3
(ii) 128 as a power of 2
(iii) 343 as a power of 7
Ans : Missing
Q.3: Find the value of:
(i) \( 2 ^ { 6 } \)
(ii) \( 9 ^ { 3 } \)
(iii) \( 11 ^ { 2 } \)
(iv) \( 5 ^ { 4 } \)
Ans : (i) \( 2 ^ { 6 } = 2 \times 2 \times 2 \times 2 \times 2 \times 2 = 64 \) (ii) \( 9 ^ { 3 } = 9 \times 9 \times 9 = 729 \) (iii) \( 11 ^ { 2 } = 11 \times 11 = 121 \) (iv) \( 5 ^ { 4 } = 5 \times 5 \times 5 \times 5 = 625 \)
Q.4: Express the following in exponential form:
(i) 6 × 6 × 6 × 6
(ii) t × t
(iii) b × b × b × b
(iv) 5 × 5× 7 × 7 × 7
(v) 2 × 2 × a × a
(vi) a × a × a × c × c × c × c × d
Ans : (i) \( 6 \times 6 \times 6 \times 6 = 6 ^ { 4 } \) (ii) \( t \times t = t ^ { 2 } \) (iii) \( b \times b \times b \times b = b ^ { 4 } \) (iv) \( 5 \times 5 \times 7 \times 7 \times 7 = 5 ^ { 2 } \times 7 ^ { 3 } \) (v) \( 2 \times 2 \times a \times a = 2 ^ { 2 } \times a ^ { 2 } \) (vi) \( a \times a \times a \times c \times c \times c \times c \times d = a ^ { 3 } c ^ { 4 } d \)
Q.5: Express each of the following numbers using exponential notation:
(i) 512
(ii) 343
(iii) 729
(iv) 3125
Ans : (i) \( 512 = 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 = 2 ^ { 9 } \) (ii) \( 343 = 7 \times 7 \times 7 = 7 ^ { 3 } \) (iii) \( 729 = 3 \times 3 \times 3 \times 3 \times 3 \times 3 = 3 ^ { 6 } \) (iv) \( 3125 = 5 \times 5 \times 5 \times 5 \times 5 = 5 ^ { 5 } \)
NCERT / CBSE Book for Class 7 Maths
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