 # NCERT Solutions for Class 8 Maths Chapter 7- Cubes and Cube roots

## NCERT Solutions For Class 8 Maths Chapter 7 PDF Free Download

NCERT Solutions are useful for students as it helps them in scoring high marks in the examination.The NCERT Solutions contain detailed step-by-step explanation of all the problems that come under the Chapter 7 “Cubes and Cube roots” of the Class 8 NCERT Textbook.

These solutions are prepared by subject matter experts at BYJU’S, describing the complete procedure of solving the problem. By understanding the concepts used in NCERT Solutions for Class 8, students will be able to clear all their doubts related to finding out the “Cubes and Cube roots.”

### Access Answers of Maths NCERT Class 8 Chapter 7 – Cubes and Cube roots             Also Access NCERT Exemplar for class 8 Maths Chapter 7 CBSE Notes for class 8 Maths Chapter 7

## NCERT Solutions for Class 8 Maths Chapter 7- Cubes and Cube roots

The NCERT solutions for Class 8 Maths Chapter 7 Cubes and Cube roots provided by BYJU’S contains the answers for all the questions present in the chapter. The chapter contains two exercises, in which, exercise 7.1 deals with Cubes and exercise 7.2 deals with Cube roots. Here is a glance of what the chapter discusses on “Cubes and Cube Roots”.

• Numbers like 1729, 4104, 13832, are known as Hardy – Ramanujan Numbers. They can be expressed as sum of two cubes in two different ways.
• Numbers obtained when a number is multiplied by itself three times are known as cube numbers.
• If in the prime factorisation of any number each factor appears three times, then the number is a perfect cube.

Main topics covered in this chapter includes:

7.1 Introduction

7.2 Cubes

7.2.1 Some Interesting Patterns

7.2.2 Smallest multiple that is a perfect cube

7.3 Cube Roots

7.3.1 Cube root through prime factorisation method

7.3.2 Cube root of a cube number

Exercise 7.1 Solutions 4 Questions (4 Short Answer Questions)

Exercise 7.2 Solutions 3 Questions (2 Long Answer Questions,1 Short Answer Questions)

## NCERT Solutions for Class 8 Maths Chapter 7- Cubes and Cube roots

The seventh chapter of Class 8 maths helps the students in finding the cubes and cube roots of different numbers, understanding the difference between cubes and cube roots, and also to have fun with some interesting patterns. The chapter also lets the students understand the process of finding out the cubes and cube roots of a number using prime factorisation method. The chapter also explains the method of finding the cube root of a cube number.

### Key Features of NCERT Solutions for Class 8 Maths Chapter 7- Cubes and Cube roots

Learning the chapter “Cubes and Cube Roots” enables the students to:

• Find out the Cubes and cubes roots for numbers containing at most 3 digits
• Estimating square roots and cube roots.
• Learning the process of moving nearer to the required number.