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

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Textbook | NCERT |

Board | CBSE |

Category | NCERT Solutions |

Class | Class 7 |

Subject | Maths |

Chapter | Chapter 13 |

Exercise | Exponents and Powers Exercise 13.1 |

Number of Questions Solved | 8 |

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

**NCERT TEXTBOOK EXERCISES**

**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 the exponential notation:**

**(i)** 512**(ii)** 343**(iii**) 729**(iv)** 3125.

**Solution:**

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:**

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

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