1.

Identify the laws in the statements :  18 × [7 +(- 3)] = [18 × 7] + [18 × (-3)]

Answer»

a × (b + c) = (a × b) + (a × c) 

Distributive over addition property 

18 × (7 – 3) = (126) + (- 54) 

18 × 4= 126 – 54 

72 = 72



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