Ex 1.2, 4 Fill in the blanks to make the following statements true: (v) (– 4) + [15 + (–3)] = [– 4 + 15] + ............
a + (b + c) = (a + b) + c
(−4) + [15 + (−3)] = [−4 + 15] + (−3)
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.
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