Question Bank Solutions for CBSE Class 9 - CBSE - Mathematics

Is zero a rational number? Can you write it in the form p/q, where p and q are integersand q ≠ 0?

Find six rational numbers between 3 and 4.

Find five rational numbers between 3/5 and 4/5.

State whether the following statement is true or false. Give reasons for your answers.

Every natural number is a whole number.

Use suitable identities to find the following products :- (x + 4) (x + 10) 

Use suitable identities to find the following products :- (x + 8) (x – 10)

Use suitable identities to find the following products :- (3x + 4) (3x – 5)

Use suitable identities to find the following products :-

`(y^2+3/2)(y^2-3/2)`

Use suitable identities to find the following products :- (3 – 2x) (3 + 2x)

Evaluate the following product without multiplying directly:- 103 × 107

Evaluate the following product without multiplying directly:- 95 × 96

Evaluate the following product without multiplying directly:- 104 × 96

Factorise the following using appropriate identities:- 9x² + 6xy + y² 

Factorise the following using appropriate identities:- 4y² – 4y + 1

Factorise the following using appropriate identities:- `x^2 - y^2/100`

Expand following, using suitable identities :- (x + 2y + 4z)² 

Expand following, using suitable identities :- (2x – y + z)² 

Expand following, using suitable identities :- (–2x + 3y + 2z)² 

Expand following, using suitable identities :- (3a – 7b – c)² 

Expand following, using suitable identities :- (–2x + 5y – 3z)²