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Question

Name the property of multiplication illustrated by each of the following statements :

(i) 158×127=127×158

(ii) (23×79)×95=23×(79×95)

(iii) 34×(34×56)+(34×78)

(iv) 169×1=1×169=169

(v) 1115×1511=1511×1115=1

(vi) 75×0=0


Solution

(i) 158×127=127×158

It is commutative law of multiplication.

(ii) (23×79)×95=23×(79×95)

It is associative law of multiplication.

(iii) 34+(56×78)=(34×56)+(34×78)

It is distributive law of multiplication over addition.

(iv) 169×1=1×169=169

It is existance of multiplicative identify.

(v) 1115×1511=1511×1115=1

It is existance of multiplicative inverse.

(vi) 75×0=0

It is multiplicative propertyof 0.


Mathematics
Secondary School Mathematics VIII
Standard VIII

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