# Chapter 1 : Integers - Ncert Solutions for Class 7 Maths CBSE

In CBSE Class 7, Mathematics is all about integers, algebraic expressions, fractions and decimals. So learning this challenging subject is important and will also help students to prepare for the further grades. TopperLearning provides study materials for CBSE Class 7 Mathematics which will assist students to score full marks in the examination. Our study materials consist of video lessons, question banks, revision notes and sample papers. All these help students to achieve success in the examination.

In our video lessons, students can clear their fundamentals of a certain topic. Our teachers explain the subject by giving real-life examples which will help you to memorise the fundamentals. To build confidence to attempt any type of question, you can refer to our sample papers. These will also give you insight on the paper pattern followed. Along with that, you would come to know what measures you need to take in order to score well in the examination. The study materials for CBSE Class 7 Mathematics are prepared by our academic experts.

Additionally, you can even refer to our NCERT textbook solutions which will help you to clear all your concepts step-by-step. They are available online and free of cost. We also have an 'Ask the Expert' facility, wherein all your doubts and subject-related queries will be solved. We help you to score more marks in the examination and clear your fundamentals of a certain subject.

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## Chapter 1 - Integers Excercise Ex. 1.1

Solution 1 Solution 2 Solution 3 Solution 4 Solution 5 Solution 6 Solution 7 Solution 8 Solution 9 Solution 10  ## Chapter 1 - Integers Excercise Ex. 1.2

Solution 1 Solution 2 Solution 3 Solution 4 ## Chapter 1 - Integers Excercise Ex. 1.3

Solution 1 Solution 2 Solution 3 Solution 4 Solution 5  Solution 6 Solution 7 Solution 8 Solution 9 ## Chapter 1 - Integers Excercise Ex. 1.4

Solution 1 Solution 2 Solution 3 Solution 4 Solution 5 Solution 6

Marks obtained for 1 right answer = + 3

Marks obtained for 1 wrong answer = - 2

(i) Marks scored by Radhika = 20

Marks obtained for 12 correct answer = 12 × 3 = 36

Marks obtained for incorrect answers = Total score - Marks obtained for 12 correct answers

= 20 - 36

= - 16

Marks obtained for 1 wrong answer = - 2

Thus, number of incorrect answers = (- 16) ÷ (- 2) = 8

So, she attempted 8 questions wrongly.

(ii) Marks scored by Mohini = - 5

Marks obtained for 7 correct answers = 7 × 3 = 21

Marks obtained for incorrect answers = Total score - Marks obtained for 12 correct answers

= - 5 - 21

= - 26

Marks obtained for 1 wrong answer = - 2

Thus, number of incorrect answers = (- 26) ¸ (- 2) = 13

So, she attempted 13 questions wrongly.

Solution 7 ## Key features of study materials for CBSE Class 7 Mathematics:

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• Free textbook solutions
• ‘Ask the Expert’ facility
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