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(– 23) × (42) = (– 42) × _____. - Mathematics

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Question

(–23) × (42) = (–42) × _____.

Fill in the Blanks

Solution

(–23) × (42) = (–42) × (23).

Explanation:

(–23) × (42) = (–1) × (23) × (42)

= (–1) × (42) × (23)    ......[Multiplication is commutative, i.e. a × b = b × a]

= (–42) × (23)   

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Chapter 1: Integers - Exercise [Page 12]

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NCERT Exemplar Mathematics [English] Class 7
Chapter 1 Integers
Exercise | Q 41 | Page 12
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