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Ex 6.2, 4 - Find sum of (a) 137 and -354 (b) -52 and 52 (c) -312, 39

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Ex 6.2, 4 Find the sum of : (a) 137 and – 354 137 + (−354) = 137 − 354 Taking − common = − (−137 + 354) = − (354 − 137) = −217 Rules + & − becomes – + & + becomes + − & − becomes +

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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.