1-2+3-4+5-6+7-8+………-100

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1-2+3-4+5-6+7-8+………-100

Jawaban Terkonfirmasi

Dikelompokan saja
(1 – 2) + (3 – 4) + (5 – 6) + … + (99 – 100)
= -1 + -1 + -1 + … + -1
= -1 x 50
= -50