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Grade 7 Maths Ncert solutions Exponents and Powers

NCERT books are recommended text book for CBSE school curriculum. Most of the govt aided and private schools in India follow NCERT text books as the syllabus books for school subjects. They are written by eminent academicians and scholars from leading universities and academic institutions in India, and help in building a strong base, as well help understand each concept by relevant examples and exercises. They are termed best in term of concept building, for their usage of real life practical examples, and good end of the chapter exercises.

In this article, we have shared solved NCERT exercises for Class 7 maths exponents and power chapter.  Exponents and power is an important chapter, as it set a base for the arithmetic for the future classes. These NCERT solutions will help students in solving their doubts and clarifying confusion regarding confusions regarding this chapter. Students can refer to NCERT solutions for exponents and power chapter for their conceptual understanding, as well as matching their own answers with the right solutions of the exercises.

Class 7 math ncert solution exponents and power chapter

Exercise 13.1 solutions

Q1 – Find the value of: View solution

Q2 – 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 View solution

Q3 – Express each of the following numbers using exponential notation: (i) 512 (ii) 343 (iii) 729 (iv) 3125 View solution

Q4 – Identify the greater number, wherever possible, in each of the following? View solution

Q5 – Express each of the following as product of powers of their prime factors: (i) 648 (ii) 405 (iii) 540 (iv) 3,600 View solution

Q6 – Simplify View solution

Q7 – Simplify View solution

Q8 – Compare the following numbers: View solution

Exercise 13.2 solutions

Q1 – Using laws of exponents, simplify and write the answer in exponential form: View solution

Q2 – Simplify and express each of the following in exponential form: View solution

Q3 – Say true or false and justify your answer: View solution

Q4 – Express each of the following as a product of prime factors only in exponential form: (i) 108 × 192 (ii) 270 (iii) 729 × 64 (iv) 768 View solution

Q5 – Simplify View solution

Exercise 13.3 solutions

Q1 – Write the following numbers in the expanded forms: 279404, 3006194, 2806196, 120719, 20068 View solution

Q2 – Find the number from each of the following expanded forms: View solution

Q3 – Express the following numbers in standard form: (i) 5,00,00,000 (ii) 70,00,000 (iii) 3,18,65,00,000 (iv) 3,90,878 (v) 39087.8 (vi) 3908.78 View solution

Q4 – Express the number appearing in the following statements in standard form. (a) The distance between Earth and Moon is 384,000,000 m. (b) Speed of light in vacuum is 300,000,000 m/s. (c) Diameter of the Earth is 1,27,56,000 m. (d) Diameter of the Sun is 1,400,000,000 m. (e) In a galaxy there are on an average 100,000,000,000 stars. (f) The universe is estimated to be about 12,000,000,000 years old. (g) The distance of the Sun from the centre of the Milky Way Galaxy is estimated to be 300,000,000,000,000,000,000 m. (h) 60,230,000,000,000,000,000,000 molecules are contained in a drop of water weighing 1.8 gm. (i) The earth has 1,353,000,000 cubic km of sea water. (j) The population of India was about 1,027,000,000 in March, 2001 View solution

End Note

In the article, we have shared solutions for ncert exercises for class 7 maths for exponents and power chapter. Students can click to respective chapters and refer to the right solution. We advise students to refer to them as clearing their concepts, and matching their solutions. Student should not use them to copy solutions for their homework and instead should try to solve homework on own, as it will impact their learning process.

In case you have any doubts regarding solution, or need further clarification, you can write to us. You can also reach out to us, in case you have doubt in other text books’ problems or school exam papers. We will be glad to assist you in helping with your doubt.

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