Integers| Worksheet Solutions| Class 7

 Worksheet solutions for chapter: Integers for class 7 are provided below.

 

(1) Verify a-(b) =a-b if, a=6, b=5

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a-(b)=a-b

Put value of a and b

LHS

a-b

=6-5

=1

RHS

a-b

=6-5

=1

LHS=RHS

Hence, verified.

 

Integers, Q 2 Worksheet

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Solution 2, Integers

Q 3, Integer, worksheet

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Solution 3, Integers , worksheet

Q 4, Integer, worksheet

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Solution 4, Integers , worksheet

(5) A shopkeeper earns a profit of Rs.1 by selling one pen and incurs a loss of 40 paise per pencil while selling pencils of her old stock. In a particular month she incurs a loss of Rs.5. In this period, she sold 45 pens. How many pencils did she sell in this period?

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Solution 5, Integers , worksheet

(6) Write a negative integer and a positive integer whose difference is -5.

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-3-2=-5

Hence, -3 and 2 are required integers.

 

(7) Sita deposited Rs.3000 in her bank account. She withdraws Rs.1500 next day. If withdrawal of amount from the account is represented by a negative integer, then how will you represent the amount deposited? Find the balance in Sita’s account.

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(8) In a class test containing 15 questions, 4 marks are given for every correct answer and (-2) marks are given for every incorrect answer. Gurpreet attempts all questions but only 9 of her answers are correct. What is her total score?

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(9) Write ‘T’ if statement is true and write ‘F’ if statement is false:

(i) -8-5=-13

(ii) If we add 0 to any number we will get same number.

(iii) If we multiply any number to 0 we will get same number.

(iv) Additive inverse of 8 is -8.

(v) 0 is an integer.

Ans-

(i)-8-5=-13.  T

(ii)If we add 0 to any number we will get same number. T

(iii)If we multiply any number to 0 we will get same number. F

(iv) Additive inverse of 8 is -8.   T

(v) 0 is an integer. T

 

(10) Suppose we represent the distance above the ground by a positive integer and that below the ground by a negative integer, than answer the following:

(i) An elevator descends into a mine shaft at the rate of 5 metre per minute. What will be its position after one hour?

(ii) If it begins to descend from 15 m above the ground, what will be its position after 45 minutes?

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Helping Topics

Integers

NCERT Solutions Class 7