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NCERT Solutions for Class 7 Maths Chapter 1 Integers Exercise 1.2
The NCERT solutions for class 7 Maths chapter 1 Integers exercise 1.2 offer detailed explanations and answers for integer-related problems. Class 7 Maths exercise 1.2 covers properties like addition and subtraction, such as closure, commutative, and associative properties, as well as the presence of additive identity and inverses. These NCERT solutions aim to enhance students’ understanding and application of integer concepts, crucial for mastering mathematics in the CBSE syllabus for Class 7.
Topics Included in Class 7 Maths Chapter 1 Exercise 1.2
- Multiplication of a Positive and a Negative Integer
- Properties of Multiplication of Integers
- Closure under Multiplication
- Commutativity of Multiplication
- Multiplication by Zero
- Multiplicative Identity
- Associativity for Multiplication
- Distributive Property
Also Check: CBSE Class 7 Maths Syllabus
Access NCERT Solutions for Class 7 Maths Chapter 1 Integers Ex 1.2 Textbook Solutions
All questions of NCERT Solutions for Class 7 Maths Chapter 1 Integers Exercise 1.2 easy and understandable solutions is provided below:
Q1: Write down a pair of integers whose:
(a) sum is -7
(b) difference is 10
(c) sum is 0.
Sol.
(a) (-15 ) and 8
(b) 15 and 25.
(c) ( 49)− and 49
Q2:
(a) Write a pair of negative integers and a positive integer whose sum is −5
(b) Write a negative integer and a positive integer whose difference is -3.
Sol.
(a) (−10) and (-18)
(b) (−10) and 5
Q 3: In a quiz, team A scored 40− , 10, 0 and team B scored 10, 0, 40− in three successive rounds. Which team scored more? Can we say that we can add integers in any order?
Sol.
Total score of team A
= −40+10+0 = (−40)+10
= (−40−10) = −30
Total score of Team B
=10+0+(−40) =10+(−40)
= −(40−10) = −30
So, both the teams scored equally. Yes! We can say that can add integers in any order.
Yes, we can add integers in any order due to commutative property.
Q 4: Fill in the blanks to make the following statements true:
(i) (−5)+(−8) = (−8)+(…..)
(ii) −53+….. = −53
(iii)17 +….. = 0(iv)[ 13+(12)] +(…..) =13+ [(12)+(−7)]
(v) (−4)+ [15+(−3)] = [−4+15]+…… .
Sol.
(i) (−5)+(−8) = (−8)+(−5) [Commutative property]
(ii) -53 + 0 = -53 [Zero additive property]
(iii)17+(−17) = 0 [Additive identity]
(iv) [13+(12)] +(−7) =13+ [(12)+(−7)] [Associative property]
(v) (−4) + [15+(−3)] = [−4+15]+(−3) [Associative property]
Also Check:
NCERT Solutions for Class 7 Maths Chapter 1 Integers Exercise 1.2 PDF Download
The NCERT Solutions for Class 7 Maths Chapter 1 Integers Exercise 1.2 are available for download in PDF format. This exercise focuses on the addition and subtraction of integers, which are crucial concepts for Class 7 students to grasp. The solutions are presented in a step-by-step manner, making it easy for students to follow along and understand the mathematical processes involved. By downloading the PDF, students can access these solutions anytime and anywhere, allowing them to practice and reinforce their understanding of integers effectively.
| Other Resources for Class 7 | |
| NCERT Exemplar Solutions Class 7 | NCERT Books for Class 7 |
| Class 7 Worksheets | NCERT Solutions for Class 7 |
FAQs on NCERT Solutions for Class 7 Maths Chapter 1 Integers Exercise 1.2
How many exercises are there in integers Class 7?
In Class 7 Maths Chapter 1 Integers, there are four exercises in total. Each exercise focuses on different aspects of integers.
What are the properties of multiplication of integers?
The properties of multiplication of integers include the closure property, commutative property, associative property, distributive property, and the existence of a multiplicative identity and inverse.
What topics are covered in Class 7 Maths chapter 1 Integers exercise 1.2?
Class 7 Maths Chapter 1 Integers Exercise 1.2 covers topics related to the addition and subtraction of integers, including their rules and properties.
How can I access the NCERT Solutions for Class 7 Maths Exercise 1.2?
You can access the NCERT Solutions for Class 7 Maths Exercise 1.2 online through educational websites like Infinity Learn, or you can download the PDF from the NCERT website.
Why choose Infinity Learn to download Class 7 Ex 1.2 solutions?
Infinity Learn provides detailed and easy-to-understand solutions for Class 7 Maths Exercise 1.2. Their expert explanations help students grasp concepts better and prepare effectively for exams.
