Secondary School (English Medium) (5 to 8) इयत्ता ८ - CBSE Question Bank Solutions

Find the  cubes of the number 40 . 

Find the  cubes of the number 55 .

Find the  cubes of the number 100 . 

Find the  cubes of the number 302 .

Find the  cubes of the number 301 .

Write the cubes of all natural numbers between 1 and 10 and verify the following statements:
(i) Cubes of all odd natural numbers are odd.
(ii) Cubes of all even natural numbers are even.

Write the cubes of 5 natural numbers which are multiples of 3 and verify the followings:
'The cube of a natural number which is a multiple of 3 is a multiple of 27'

Write the cubes of 5 natural numbers which are of the form 3n + 1 (e.g. 4, 7, 10, ...) and verify the following:
'The cube of a natural number of the form 3n + 1 is a natural number of the same form i.e. when divided by 3 it leaves the remainder 1'.

Write the cubes of 5 natural numbers of the form 3n + 2 (i.e. 5, 8, 11, ...) and verify the following:
'The cube of a natural number of the form 3n + 2 is a natural number of the same form i.e. when it is dividend by 3 the remainder is 2'.

Which of the following is  perfect cube? 

 64

Which of the following is  perfect cube? 

216

Which of the following is  perfect cube? 

243

Which of the following is  perfect cube? 

1000

Which of the following is  perfect cube? 

1728

Which of the following is  perfect cube? 

3087

Which of the following is  perfect cube? 

 4608

Which of the following is  perfect cube? 

 106480

Which of the following is  perfect cube? 

166375

Which of the following is  perfect cube? 

 456533