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NCERT solutions for Class 8 Mathematics chapter 7 - Cubes and Cube Roots

Mathematics Textbook for Class 8

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Chapters

NCERT Mathematics Class 8

Mathematics Textbook for Class 8

Chapter 7 : Cubes and Cube Roots

Page 114

Q 1.1 | Page 114

The following numbers are not perfect cubes?

216

 

Q 1.2 | Page 114

The following numbers are not perfect cubes?

128

Q 1.3 | Page 114

The following numbers are not perfect cubes?

1000

Q 1.4 | Page 114

The following numbers are not perfect cubes?

100

Q 1.5 | Page 114

Which of the following numbers are notperfect cubes?

46656

Q 2.1 | Page 114

Find the smallest number by which the following number must be multiplied to obtain a perfect cube.

243

Q 2.2 | Page 114

Find the smallest number by which the following number must be multiplied to obtain a perfect cube.

256

Q 2.3 | Page 114

Find the smallest number by which the following number must be multiplied to obtain a perfect cube.

72

Q 2.4 | Page 114

Find the smallest number by which the following number must be multiplied to obtain a perfect cube.

675

Q 2.5 | Page 114

Find the smallest number by which the following number must be multiplied to obtain a perfect cube.

100

Q 3.1 | Page 114

Find the smallest number by which the following number must be divided to obtain a perfect cube.

81

Q 3.2 | Page 114

Find the smallest number by which the following number must be divided to obtain a perfect cube.

128

Q 3.3 | Page 114

Find the smallest number by which the following number must be divided to obtain a perfect cube.

135

Q 3.4 | Page 114

Find the smallest number by which the following number must be divided to obtain a perfect cube.

192

Q 3.5 | Page 114

Find the smallest number by which the following number must be divided to obtain a perfect cube.

704

Q 4 | Page 114

Parikshit makes a cuboid of plasticine of sides 5 cm, 2 cm, 5 cm. How many such cuboids will he need to form a cube?

Page 116

Q 1.1 | Page 116

Find the cube root of the following numbers by prime factorisation method.

91125

Q 1.1 | Page 116

Find the cube root of the following numbers by prime factorisation method.

64

Q 1.2 | Page 116

Find the cube root of the following numbers by prime factorisation method.

512

Q 1.3 | Page 116

Find the cube root of the following numbers by prime factorisation method.

10648

Q 1.4 | Page 116

Find the cube root of the following numbers by prime factorisation method.

27000

Q 1.5 | Page 116

Find the cube root of the following numbers by prime factorisation method.

15625

Q 1.6 | Page 116

Find the cube root of the following numbers by prime factorisation method.

13824

Q 1.7 | Page 116

Find the cube root of the following numbers by prime factorisation method.

110592

Q 1.8 | Page 116

Find the cube root of the following numbers by prime factorisation method.

46656

Q 1.9 | Page 116

Find the cube root of the following numbers by prime factorisation method.

175616

Q 2.1 | Page 116

State true or false.

Cube of any odd number is even.

Q 2.2 | Page 116

State true or false.

A perfect cube does not end with two zeroes.

Q 2.3 | Page 116

State true or false.

If square of a number ends with 5, then its cube ends with 25.

Q 2.4 | Page 116

State true or false

There is no perfect cube which ends with 8.

Q 2.5 | Page 116

State true or false.

The cube of a two digit number may be a three digit number.

Q 2.6 | Page 116

State true or false.

The cube of a two digit number may have seven or more digits.

Q 2.7 | Page 116

State true or false.

The cube of a single digit number may be a single digit number.

Q 3 | Page 116

You are told that 1331 is a perfect cube. Can you guess without factorization what is its cube root? Similarly, guess the cube roots of 4913, 12167, 32768

NCERT Mathematics Class 8

Mathematics Textbook for Class 8

NCERT solutions for Class 8 Mathematics chapter 7 - Cubes and Cube Roots

NCERT solutions for Class 8 Maths chapter 7 (Cubes and Cube Roots) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CBSE Mathematics Textbook for Class 8 solutions in a manner that help students grasp basic concepts better and faster.

Further, we at shaalaa.com are providing such solutions so that students can prepare for written exams. NCERT textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 8 Mathematics chapter 7 Cubes and Cube Roots are Introduction of Cubes and Cube Root, Cube Root of a Cube Number, Cube Root Through Prime Factorisation Method, Smallest Multiple that is a Perfect Cube, Some Interesting Patterns, Introduction for Cubes.

Using NCERT Class 8 solutions Cubes and Cube Roots exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in NCERT Solutions are important questions that can be asked in the final exam. Maximum students of CBSE Class 8 prefer NCERT Textbook Solutions to score more in exam.

Get the free view of chapter 7 Cubes and Cube Roots Class 8 extra questions for Maths and can use shaalaa.com to keep it handy for your exam preparation

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