# NCERT Solutions for Class 7 Maths Exercise 1.2

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NCERT solutions for Class 7 Integers Maths

## NCERT Solutions for Class 7 Maths Integers

###### Question 1.Write down a pair of integers whose:

(a) sum is {tex} – 7{/tex}

(b) difference is {tex} – 10{/tex}

(c) sum is 0

(a) One such pair whose sum is {tex} – 7{/tex}: {tex} – 5 + \left( { – 2} \right) = – 7{/tex}

(b) One such pair whose difference is {tex} – 10{/tex}: {tex} – 2 – 8 = – 10{/tex}

(c) One such pair whose sum is 0: {tex} – 5 + 5 = 0{/tex}

NCERT Solutions for Class 7 Maths Exercise 1.2

###### Question 2.(a) Write a pair of negative integers whose difference gives 8.

(b) Write a negative integer and a positive integer whose is {tex} – 5.{/tex}

(c) Write a negative integer and a positive integer whose difference is {tex} – 3.{/tex}

(a) {tex} – 2 – \left( { – 10} \right) – 2 + 10 = 8{/tex}

(b) {tex}\left( { – 7} \right) + 2 = – 5{/tex}

(c) {tex}\left( { – 2} \right) – 1 = – 2 – 1 = – 3{/tex}

NCERT Solutions for Class 7 Maths Exercise 1.2

###### Question 3.In a quiz, team A scored {tex} – 40,10,0{/tex} and team B scores 10, 0, {tex} – 40{/tex} in three successive rounds. Which team scored more? Can we say that we can add integers in any order?

Team A scored {tex} – 40,10,0{/tex}

Total score of Team A = {tex} – 40 + 10 + 0 = – 30{/tex}

Team B scored {tex}10,0, – 40{/tex}

Total score of Team B = {tex}10 + 0 + \left( { – 40} \right) = 10 + 0 – 40 = – 30{/tex}

Thus, scores of both teams are same.

Yes, we can add integers in any order due to commutative property.

NCERT Solutions for Class 7 Maths Exercise 1.2

###### Question 4.Fill in the blanks to make the following statements true:

(i){tex}\left( { – 5} \right) + \left( { – 8} \right) = \left( { – 8} \right) + \left( {…….} \right){/tex}

(ii){tex} – 53 + ……. = – 53{/tex}

(iii)17 + ……. = 0

(iv){tex}\left[ {13 + \left( { – 12} \right)} \right] + \left( {…….} \right) = 13 + \left[ {\left( { – 12} \right) + \left( { – 7} \right)} \right]{/tex}

(v){tex}\left( { – 4} \right) + \left[ {15 + \left( { – 3} \right)} \right] = \left[ { – 4 + 15} \right] + …….{/tex}

(i) {tex}\left( { – 5} \right) + \left( { – 8} \right) = \left( { – 8} \right) + \underline {\left( { – 5} \right)} {/tex} [Commutative property]

(ii) {tex} – 53 + \underline 0 = – 53{/tex} [Zero additive property]

(iii) {tex}17 + \underline {\left( { – 17} \right)} = 0{/tex} (Additive identity]

(iv){tex}\left[ {13 + \left( {12} \right)} \right] + \underline {\left( { – 7} \right)} = 13 + \left[ {\left( { – 12} \right) + \left( { – 7} \right)} \right]{/tex} [Associative property]

{tex}\left( { – 4} \right) + \left[ {15 + \left( { – 3} \right)} \right] = \left[ { – 4 + 15} \right] + \underline {\left( { – 3} \right)} {/tex} [Associative property]

## NCERT Solutions for Class 7 Maths Exercise 1.2

NCERT Solutions Class 7 Maths PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 7 Maths includes text book solutions from Class 7 Maths Book . NCERT Solutions for CBSE Class 7 Maths have total 15 chapters. 7 Maths NCERT Solutions in PDF for free Download on our website. Ncert Maths class 7 solutions PDF and Maths ncert class 7 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide.

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### 4 thoughts on “NCERT Solutions for Class 7 Maths Exercise 1.2”

1. one mistake it is class not lass

2. Dude ur app has help us a lot .

3. Very nice

4. Ncert math 1.2 ka ans book me nahi mil raha hai