Question

/O ExегCI
1. Find the cubes of the following numbers :
(a) - 27
(e) 11/12

(b) 0.9
11
(d) 0.06
(e)
(c) 3.5
- 2
(1)
7
12
by alternative method :​

Answer 1

Answer:

Step-by-step explanation:

In Exercise 4.1 of RD Sharma Class 8 Maths Chapter 4 Cubes and Cube Roots, we shall discuss problems based on the cubes of natural numbers and perfect cube numbers along with their properties, finding cube of a two-digit number by column method. Students can refer and download RD Sharma Class 8 Solutions Maths from the links provided below. RD Sharma Solutions provides ample questions along with their solutions, shortcut techniques and detailed explanations are provided by our expert tutors, which help students score well in their examination.

1. Find the cubes of the following numbers:

(i) 7 (ii) 12

(iii) 16 (iv) 21

(v) 40 (vi) 55

(vii) 100 (viii) 302

(ix) 301

Solution:

(i) 7

Cube of 7 is

7 = 7× 7 × 7 = 343

(ii) 12

Cube of 12 is

12 = 12× 12× 12 = 1728

(iii) 16

Cube of 16 is

16 = 16× 16× 16 = 4096

(iv) 21

Cube of 21 is

21 = 21 × 21 × 21 = 9261

(v) 40

Cube of 40 is

40 = 40× 40× 40 = 64000

(vi) 55

Cube of 55 is

55 = 55× 55× 55 = 166375

(vii) 100

Cube of 100 is

100 = 100× 100× 100 = 1000000

(viii) 302

Cube of 302 is

302 = 302× 302× 302 = 27543608

(ix) 301

Cube of 301 is

301 = 301× 301× 301 = 27270901