Ex 6.2, 4 - Chapter 6 Class 6 Integers

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Ex 6.2, 4Find the sum of :(a) 137 and – 354137 + (−354) = 137 − 354 Taking − common = − (−137 + 354) = − (354 − 137) = −217 Rules + & − becomes – + & + becomes + − & − becomes + Ex 6.2, 4Find the sum of : (b) – 52 and 52−52 + 52 = 0 Rules + & − becomes + & + becomes − & − becomes Ex 6.2, 4Find the sum of : (c) – 312, 39 and 192 −312 + 39 + 192 = −312 + (192 + 39) = −312 + 231 Taking − common = −(312 − 231) = −81 Rules + & − becomes + & + becomes − & − becomes Ex 6.2, 4Find the sum of : (d) – 50, – 200 and 300 − 50 + (−200) + 300 = − 50 − 200 + 300 = (300 − 200) − 50 = 100 – 50 = 50 Rules + & − becomes + & + becomes − & − becomes