# CBSE Class 7 Mathematics Integers Worksheet Set D

Read and download free pdf of CBSE Class 7 Mathematics Integers Worksheet Set D. Students and teachers of Class 7 Mathematics can get free printable Worksheets for Class 7 Mathematics Chapter 1 Integers in PDF format prepared as per the latest syllabus and examination pattern in your schools. Class 7 students should practice questions and answers given here for Mathematics in Class 7 which will help them to improve your knowledge of all important chapters and its topics. Students should also download free pdf of Class 7 Mathematics Worksheets prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this academic year and solve important problems with solutions on daily basis to get more score in school exams and tests

## Worksheet for Class 7 Mathematics Chapter 1 Integers

Class 7 Mathematics students should refer to the following printable worksheet in Pdf for Chapter 1 Integers in Class 7. This test paper with questions and answers for Class 7 will be very useful for exams and help you to score good marks

### Class 7 Mathematics Worksheet for Chapter 1 Integers

CBSE Class 7 Maths Worksheet - Integers (3)

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INTEGERS (MULTIPLICATION)

Multiplication of Integers

Multiplication is basically repeated addition. Therefore multiplication of integers is the repeated addition as:

Properties of Multiplication of Integers

Distributive Property According to the distributive property of multiplication of integers, if a, b and c are three integers then,
a× (b + c) = (a × b) + (a × c)
Example -

QUESTIONS :-

Q1. SIMPLIFY :-

(i) (−8) × 9 + (−8) × 7
Solution.
(−8) ×× (9 + 7) [using the distributive law]
= (−8) ×× 16
= −128

(ii) 9 × (−13) + 9 × (−7)
Solution.
9 ×× (−13 + (−7)) [using the distributive law]
= 9 ×× (−20)
= −180

(iii) 20 × (−16) + 20 × 14
Solution.
20 ×× (−16 + 14) [using the distributive law]
= 20 ×× (−2)
= −40

(iv) (−16) × (−15) + (−16) × (−5)
Solution.
(−16) ×X (−15 + (−5)) [using the distributive law]
= (−16) ×X(−20)
= 320

(v) (−11) × (−15) + (−11) × (−25)
Solution.
(−11) ×X(−15 +(−25)) [using the distributive law]
= (−11) ×X (−40)
= 440

(vi) 10 × (−12) + 5 × (−12)
Solution.
(−12) ×× (10 + 5) [using the distributive law]
= (−12) ×× 15
= −180

(vii) (−16) × (−8) + (−4) × (−8)
Solution.
(−16 + (−4)) ×× (−8) [using the distributive law]
= (−20) ×× (−8)
= 160

(viii) (−26) × 72 + (−26) × 28
Solution.
(−26) ×× (72 + 28) [using the distributive law]
= (−26) ××100
= −2600

Q2. Fill in the blanks :-

(i) (−6) × (......) = 6
(ii) (−18) × (......) = (−18)
(iii) (−8) × (−9) = (−9) × (......)
(iv) 7 × (−3) = (−3) × (......)
(v) {(−5)×3} × (−6) = (......) × {3×(−6)}
(vi) (−5) × (......) = 0
(i) (−6) × (x) = 6 x = 6−6 = −66= −1x = 6-6 = -66= -1 Thus, x = (−1)
(ii) 1 [∵ Multiplicative identity]
(iii) (−8) [∵ Commutative law]
(iv) 7 [∵ Commutative law]
(v) (−5) [∵ Associative law]
(vi) 0 [∵ Property of zero]

Q3. Prove that :- i). (-3) × {4 × (-5)} = (- 3) × {4 × (-5)}
Solution.
(-3) × {4 × (-5)} = (-3) × (-20) = 3 × 20 = 60
and, {(-3) × 4} × (-5) = (-12) × (-5) = 12 × 5 = 60
Therefore, (- 3) × {4 × (-5)} = {(-3) × 4} × (-5)

(ii) (-2) × {(-3) × (-5)} = (- 2) × {(-3) × (-5)}
Solution.
(-2) × {(-3) × (-5)} = (-2) × 15 = -(2 × 15)= -30
and, {(-2) × (-3)} × (-5) = 6 × (-5) = -(6 × 5) = -30
Therefore, (- 2) × {(-3) × (-5)} = {-2) × (-3)} × (-5)

Q4. Solve that :-7 × (-3) = (-3) × 7
Solution.
7 × (-3) = -(7 × 3) = -21 and (-3) × 7
= -(3 × 7) = -21 Therefore, 7 × (-3)
= (-3) × 7

Q5. Prove that (-5) × (-8) = (-8) × (-5)
Solution.
(-5) × (-8) = 5 × 8 = 40 and (-8) × (-5) = 8 × 5 = 40
Therefore, (-5) × (-8) = (-8) × (-5).

Please click the below link to access CBSE Class 7 Maths Worksheet - Integers (3)

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### CBSE Class 7 Mathematics Chapter 1 Integers Worksheet

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