Secondary School (English Medium) (5 to 8) Class 8 - CBSE Question Bank Solutions for Mathematics

Obtain the factors of z² – 4z – 12.

Mass of earth is 5.97 × 10²⁴ kg and the mass of the moon is 7.35 × 10²² kg. What is the total mass?

The diameter of the Sun is 1.4 × 10⁹ m and the diameter of the Earth is 1.2756 × 10⁷ m.

Zero (0) is ______

One (1) is ______

If x + 0 = 0 + x = x, which is rational number, then 0 is called ______

If x be any rational number then x + 0 is equal to ______.

(213 × 657)^–1 = 213^–1 × ______.

For any rational number x, x + (–1) = –x.

Name the property used in the following.

`(-2)/7 + 0 = 0 + (-2)/7 = - 2/7`

Name the property used in the following.

`3/8 xx 1 = 1 xx 3/8 = 3/8`

What is the least number that should be subtracted from 1385 to get a perfect square? Also find the square root of the perfect square.

Find the square root of 324 by the method of repeated subtraction.

Which amongst the following is not a polyhedron?

Which of the following will not form a polyhedron?

Which of the following is a regular polyhedron?

Which of the following is a two Dimensional figure?

Which of the following is the top view of the given shape?

In a three-dimensional shape, diagonal is a line segment that joins two vertices that do not lie on the ______ face.

A pentagonal prism has ______ faces.