NCERT Solutions for Class 7 Maths Chapter 13 Exponents and Powers Ex 13.1 are part of NCERT Solutions for Class 7 Maths. Here we have given NCERT Solutions for Class 7 Maths Chapter 13 Exponents and Powers Ex 13.1.

- Exponents and Powers Class 7 Ex 13.2
- Exponents and Powers Class 7 Ex 13.3
- Exponents and Powers Class 7 MCQ

Board |
CBSE |

Textbook |
NCERT |

Class |
Class 7 |

Subject |
Maths |

Chapter |
Chapter 13 |

Chapter Name |
Exponents and Powers |

Exercise |
Ex 13.1 |

Number of Questions Solved |
8 |

Category |
NCERT Solutions |

## NCERT Solutions for Class 7 Maths Chapter 13 Exponents and Powers Ex 13.1

**Question 1.**

Find the value of :

- 2
^{6} - 9
^{3} - 11
^{2} - 5
^{4}.

**Solution:**

- 2
^{6}= 2 × 2 × 2 × 2 × 2 × 2 = 64 - 9
^{3}= 9 × 9 × 9 = 729 - 11
^{2}= 11 × 11 = 121 - 5
^{4}= 5 × 5 × 5 × 5 = 625.

**Question 2.**

Express the following in exponential form :

- 6 × 6 × 6 × 6
- t × t
- b × b × b × b
- 5 × 5 × 7 × 7 × 7
- 2 × 2 × a × a
- a × a × a × c × c × c × c × d.

**Solution:**

- 6 × 6 × 6 × 6 = 6
^{4} - t × t = t
^{2} - b × b × b × b = b
^{4} - 5 × 5 × 7 × 7 × 7 = 5
^{2}× 7^{3} - 2 × 2 × a × a = 2
^{2}× a^{2} - a × a × a × c × c × c × c × d = a
^{3}× c^{4}× d.

**Question 3.**

Express each of the following numbers using exponential notation :

**(i)** 512

**(ii)** 343

**(iii**) 729

**(iv)** 3125.

**Solution:
**

Question 4.

Question 4.

Identify wherever possible, in each of the following?

**Solution:**

**Question 5.**

Express each of the following as a product of powers of their prime factors:

**(i)** 648

**(ii)** 405

**(iii)** 540

**(iv)** 3600.

**Solution:
**

**Question 6.**

Simplify :

**Solution:
**

**Question 7.**

Simplify :

**Solution:
**

**Question 8.**

Compare the following numbers :

**Solution:
**

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