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NCERT Solutions for Class 8 Maths Exercise 1.1 Class 8 Maths book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 8 Maths chapter wise NCERT solution for Maths Book all the chapters can be downloaded from our website and myCBSEguide mobile app for free.

**NCERT solutions for Class 8 Maths Rational Numbers Download as PDF**

## NCERT Solutions for Class 8 Maths Rational Numbers

**Class –VIII Mathematics (Ex. 1.1)**

**Questions**

###### 1. Using appropriate properties find:

(i)

Ans. (i)

=

[Using associative property]=

[Using distributive property]= =

= = = = 2

(ii)

Ans. (ii)

=

[Using associative property]=

[Using distributive property]= =

= = =

###### 2. Write the additive inverse of each of the following:

(i)

(ii)

(iii)

(iv)

(v)

**Ans 2.** We know that additive inverse of a rational number is such that

(i) Additive inverse of is

(ii) Additive inverse of is

(iii) Additive inverse of is

(iv) Additive inverse of is

(v) Additive inverse of is

NCERT Solutions for Class 8 Maths Exercise 1.1

###### 3. Verify that for:

(i)

(ii)

Ans 3.(i) Putting in

L.H.S. = R.H.S.

Hence, verified.

(ii)Putting in

L.H.S. = R.H.S.

Hence, verified.

NCERT Solutions for Class 8 Maths Exercise 1.1

###### 4. Find the multiplicative inverse of the following:

(i)

(ii)

(iii)

(iv)

(v)

(vi)

Ans 4. We know that multiplicative inverse of a rational number is such that

(i) Multiplicative inverse of is

(ii) Multiplicative inverse of is

(iii) Multiplicative inverse of is

(iv) Multiplicative inverse of is

(v) Multiplicative inverse of is

(vi) Multiplicative inverse of is

NCERT Solutions for Class 8 Maths Exercise 1.1

###### 5. Name the property under multiplication used in each of the following:

(i)

(ii)

(iii)

**Ans 5**.(i) 1 is the multiplicative identity.

(ii) Commutative property.

(iii) Multiplicative Inverse property.

NCERT Solutions for Class 8 Maths Exercise 1.1

###### 6. Multiply by the reciprocal of

Ans 6.The reciprocal of is

According to the question,

=

NCERT Solutions for Class 8 Maths Exercise 1.1

###### 7. Tell what property allows you to compute

as

**Ans 7**. By using associative property of multiplication, we will compute as .

NCERT Solutions for Class 8 Maths Exercise 1.1

###### 8. Is the multiplicative inverse of

Why or why not?

**Ans 8.** Since multiplicative inverse of a rational number is if

Therefore, = =

But its product must be positive 1.

Therefore, is not the multiplicative inverse of

NCERT Solutions for Class 8 Maths Exercise 1.1

###### 9. Is 0.3 the multiplicative inverse of Why or why not?

**Ans. 9.** Since multiplicative inverse of a rational number is if

Therefore, = = 1

Therefore, Yes 0.3 is the multiplicative inverse of

###### 10.Write:

(i) The rational number that does not have a reciprocal.

(ii) The rational numbers that are equal to their reciprocals.

(iii) The rational number that is equal to its negative.

**Ans. 10**.(i) 0

(ii) 1 and

(iii) 0

##### 11. Fill in the blanks:

(i) Zero has ____________ reciprocal.

(ii) The numbers ___________ and __________ are their own reciprocals.

(iii) The reciprocal of is _____________.

(iv) Reciprocal of where is _____________.

(v) The product of two rational numbers is always a ____________.

(vi) The reciprocal of a positive rational number is _______________

**Ans 11**.(i) No

(ii) 1,

(iii)

(iv)

(v) Rational Number

(vi) Positive

## NCERT Solutions for Class 8 Maths Exercise 1.1

NCERT Solutions Class 8 Mathematics PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 8 Mathematics includes text book solutions from Class 8 Maths Book . NCERT Solutions for CBSE Class 8 Maths have total 16 chapters. 8 Maths NCERT Solutions in PDF for free Download on our website. Ncert class 8 solutions PDF and Maths ncert class 8 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide.

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like very good

Ex. 1.1ke Shabi sum ke answer bejhe

E.x. 1.1 ke all sum bejhe

Ache he answer

So nice?????

Very good

Nice ????

This help full for my half yearly exam thank you so much ??