NCERT Solutions Class 7 Mathematics Exponents and Powers Ex 13.2

Class 6 - Mathematics
Chapter - Exponents and Powers : Exercise 13.2

NCERT Solutions Class 7 Mathematics textbook
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Question: 1.Using laws of exponents, simplify and write the answer in exponential form:

(i)32 x 34 x 38

(ii) 615 ÷ 610

(iii) a3 x a2

(iv) 7𝓍 x 72

(v) (52)2 ÷ 53

(vi) 25 x 55

(vii) a4 x b4

(viii) (34)3

(ix) (220 ÷ 215) x 23

(x) 8𝓉÷82

Answer :

NCERT Solutions Class 7 Mathematics Exponents and Powers
NCERT Solutions Class 7 Mathematics Exponents and Powers

Question: 2. Simplify and express each of the following in exponential form:

NCERT Solutions Class 7 Mathematics Exponents and Powers

Answer :

NCERT Solutions Class 7 Mathematics Exponents and Powers
NCERT Solutions Class 7 Mathematics Exponents and Powers
NCERT Solutions Class 7 Mathematics Exponents and Powers
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Question: 3. Say true or false and justify your

Answer :
(i) 10 x 1011 = 10011

(ii) 23 > 52

(iii)23 x 32 = 65

(iv) 30 = (1000)10

Answer :

NCERT Solutions Class 7 Mathematics Exponents and Powers

Question: 4.Express each of the following as a product of prime factors only i^n exponential form:

(i) 108 x 192

(ii) 270

(iii) 729 x 64

(iv) 768

Answer :

NCERT Solutions Class 7 Mathematics Exponents and Powers

Question: 5.Simplify:

NCERT Solutions Class 7 Mathematics Exponents and Powers

Answer :

NCERT Solutions Class 7 Mathematics Exponents and Powers
NCERT Solutions Class 7 Mathematics Exponents and Powers
NCERT Solutions Class 7 Mathematics Exponents and Powers
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